diff --git a/guide-projects/plus-sql-java-kotlin-guide/build.gradle b/guide-projects/plus-sql-java-kotlin-guide/build.gradle
index 24e3a948..823c078e 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/build.gradle
+++ b/guide-projects/plus-sql-java-kotlin-guide/build.gradle
@@ -1,22 +1,16 @@
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+
 plugins {
     id "spring.jdbc.plus.java-conventions"
     id "spring.jdbc.plus.spring-bom-conventions"
     id "org.jetbrains.kotlin.jvm"
 }
 
-compileKotlin {
-    kotlinOptions {
-        javaParameters = true
-        freeCompilerArgs = ["-Xjsr305=strict"]
-        jvmTarget = "17"
-    }
-}
-
-compileTestKotlin {
-    kotlinOptions {
+kotlin {
+    compilerOptions {
         javaParameters = true
-        freeCompilerArgs = ["-Xjsr305=strict"]
-        jvmTarget = "17"
+        freeCompilerArgs.addAll("-Xjsr305=strict")
+        jvmTarget = JvmTarget.JVM_17
     }
 }
 
@@ -24,7 +18,6 @@ dependencies {
     implementation("org.springframework.boot:spring-boot-starter-web")
     implementation project(":spring-boot-starter-data-jdbc-plus-sql")
     implementation("org.springframework.boot:spring-boot-starter-actuator")
-    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
     implementation("org.jetbrains.kotlin:kotlin-reflect")
     implementation("com.h2database:h2")
     implementation("org.projectlombok:lombok")
@@ -37,6 +30,13 @@ dependencies {
 
     testImplementation("org.springframework.boot:spring-boot-starter-test")
     testImplementation("org.projectlombok:lombok")
+
+    // FixtureMonkey
+    testImplementation("com.navercorp.fixturemonkey:fixture-monkey-starter:${fixtureMonkeyVersion}")
+    testImplementation("com.navercorp.fixturemonkey:fixture-monkey-jackson:${fixtureMonkeyVersion}")
+    testImplementation("com.navercorp.fixturemonkey:fixture-monkey-jakarta-validation:${fixtureMonkeyVersion}")
+
     testAnnotationProcessor("org.projectlombok:lombok")
+
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 }
diff --git a/guide-projects/plus-sql-java-kotlin-guide/gradle.properties b/guide-projects/plus-sql-java-kotlin-guide/gradle.properties
new file mode 100644
index 00000000..cf100b45
--- /dev/null
+++ b/guide-projects/plus-sql-java-kotlin-guide/gradle.properties
@@ -0,0 +1 @@
+fixtureMonkeyVersion=1.1.6
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/Board.java b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/Board.java
index d18ab883..e3e5fb45 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/Board.java
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/Board.java
@@ -18,9 +18,10 @@
 
 package com.navercorp.spring.data.jdbc.plus.sql.guide.board;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.HashSet;
+import static java.util.Comparator.comparing;
+import static java.util.stream.Collectors.toCollection;
+
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -34,53 +35,69 @@
 import org.springframework.data.relational.core.mapping.Table;
 
 import lombok.Builder;
-import lombok.Getter;
-import lombok.Value;
-import lombok.With;
 
 import com.navercorp.spring.jdbc.plus.commons.annotations.SqlTableAlias;
 
 /**
  * @author Myeonghyeon Lee
  */
+@Builder(toBuilder = true)
 @Table("n_board")
-@Getter
-@Builder
-public class Board {
+public record Board(
 	@Id
-	private Long id;
+	Long id,
 
-	private String name;
+	String name,
 
 	@MappedCollection(idColumn = "board_id")
-	@Builder.Default
-	private Set<Label> labels = new HashSet<>();
+	@Nullable Set<Label> labels,
 
 	@MappedCollection(idColumn = "board_id", keyColumn = "board_index")
-	@Builder.Default
-	private List<Post> posts = new ArrayList<>();
+	@Nullable List<Post> posts,
 
 	@SqlTableAlias("b_audit")
 	@Column("board_id")
-	private @Nullable Audit audit;
+	@Nullable Audit audit,
 
 	@Embedded.Nullable(prefix = "board_")
-	private @Nullable Memo memo;
+	@Nullable Memo memo,
 
 	@MappedCollection(idColumn = "board_id", keyColumn = "config_key")
-	@Builder.Default
-	private @Nullable Map<String, Config> configMap = new HashMap<>();
+	@Nullable Map<String, Config> configMap
+) {
+	public Board {
+		labels = labels == null ? Set.of() : labels;
+		posts = posts == null ? List.of() : posts;
+		configMap = configMap == null ? Map.of() : configMap;
+	}
+
+	public Board sort() {
+		return toBuilder()
+			.labels(labels.stream()
+				.sorted(comparing(label -> label.id().title()))
+				.collect(toCollection(LinkedHashSet::new)))
+			.posts(posts.stream()
+				.map(Post::sort)
+				.sorted(comparing(Post::id))
+				.toList())
+			.audit(audit != null ? audit.sort() : null)
+			.build();
+	}
 
+	@Builder(toBuilder = true)
 	@Table("n_label")
-	@Getter
-	@Builder
-	public static class Label implements Persistable<LabelId> {
+	public record Label(
 		@Id
 		@Nullable
 		@Embedded.Empty
-		private LabelId id;
+		LabelId id,
 
-		private String name;
+		String name
+	) implements Persistable<LabelId> {
+		@Override
+		public @Nullable LabelId getId() {
+			return id;
+		}
 
 		@Override
 		public boolean isNew() {
@@ -88,115 +105,135 @@ public boolean isNew() {
 		}
 	}
 
-	@Value
-	@Builder
-	public static class LabelId {
+	@Builder(toBuilder = true)
+	public record LabelId(
 		@Column("title")
-		String title;
+		String title,
 
 		@Column("project_name")
-		String projectName;
+		String projectName
+	) {
 	}
 
+	@Builder(toBuilder = true)
 	@Table("n_post")
-	@Getter
-	@Builder
-	public static class Post {
+	public record Post(
 		@Id
-		private Long id;
+		Long id,
 
-		private Long postNo;
+		Long postNo,
 
-		private String title;
+		String title,
 
-		private String content;
+		String content,
 
 		@MappedCollection(idColumn = "post_id")
-		@Builder.Default
-		private Set<Tag> tags = new HashSet<>();
+		@Nullable Set<Tag> tags,
 
 		@MappedCollection(idColumn = "post_id", keyColumn = "post_index")
-		@Builder.Default
-		private List<Comment> comments = new ArrayList<>();
+		@Nullable List<Comment> comments,
 
 		@Column("post_id")
-		private @Nullable Audit audit;
+		@Nullable Audit audit,
 
 		@Embedded.Nullable
-		private @Nullable Memo memo;
+		@Nullable Memo memo,
 
 		@MappedCollection(idColumn = "post_id", keyColumn = "config_key")
-		@Builder.Default
-		private @Nullable Map<String, Config> configMap = new HashMap<>();
+		@Nullable Map<String, Config> configMap
+	) {
+		public Post {
+			tags = tags == null ? Set.of() : tags;
+			comments = comments == null ? List.of() : comments;
+			configMap = configMap == null ? Map.of() : configMap;
+		}
+
+		public Post sort() {
+			return toBuilder()
+				.tags(tags.stream()
+					.sorted(comparing(Tag::id))
+					.collect(toCollection(LinkedHashSet::new)))
+				.comments(comments.stream()
+					.map(Comment::sort)
+					.sorted(comparing(Comment::id))
+					.toList())
+				.audit(audit != null ? audit.sort() : null)
+				.build();
+		}
 	}
 
+	@Builder(toBuilder = true)
 	@Table("n_tag")
-	@Value
-	@Builder
-	public static class Tag {
+	public record Tag(
 		@Id
-		@With
-		Long id;
+		Long id,
 
-		String content;
+		String content
+	) {
 	}
 
+	@Builder(toBuilder = true)
 	@Table("n_comment")
-	@Getter
-	@Builder
-	public static class Comment {
+	public record Comment(
 		@Id
-		private Long id;
+		Long id,
 
-		private String content;
+		String content,
 
 		@Column("comment_id")
-		private @Nullable Audit audit;
+		@Nullable Audit audit
+	) {
+		public Comment sort() {
+			return toBuilder()
+				.audit(audit != null ? audit.sort() : null)
+				.build();
+		}
 	}
 
+	@Builder(toBuilder = true)
 	@Table("n_audit")
-	@Getter
-	@Builder
-	public static class Audit {
+	public record Audit(
 		@Id
-		private Long id;
+		Long id,
 
-		private String name;
+		String name,
 
 		@Embedded.Nullable
-		private @Nullable Memo memo;
+		@Nullable Memo memo,
 
 		@Column("audit_id")
-		private @Nullable AuditSecret secret;
+		@Nullable AuditSecret secret
+	) {
+		public Audit sort() {
+			return this;
+		}
 	}
 
-	@Value
-	@Builder
-	public static class Memo {
-		String memo;
+	@Builder(toBuilder = true)
+	public record Memo(
+		String memo
+	) {
 	}
 
+	@Builder(toBuilder = true)
 	@Table("n_audit_secret")
-	@Value
-	@Builder
-	public static class AuditSecret {
+	public record AuditSecret(
 		@Id
-		@With
-		Long id;
+		Long id,
 
-		String secret;
+		String secret
+	) {
 	}
 
+	@Builder(toBuilder = true)
 	@Table("n_config")
-	@Value
-	@Builder
-	public static class Config {
+	public record Config(
 		@Id
-		@With
-		Long id;
+		Long id,
 
-		String configKey;
+		String configKey,
 
-		String configValue;
+		String configValue
+	) {
 	}
 }
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/BoardRepository.java b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/BoardRepository.java
index 317f919e..3c502106 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/BoardRepository.java
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/BoardRepository.java
@@ -19,11 +19,11 @@
 package com.navercorp.spring.data.jdbc.plus.sql.guide.board;
 
 import org.jspecify.annotations.NullMarked;
-import org.springframework.data.repository.CrudRepository;
+import org.springframework.data.repository.ListCrudRepository;
 
 /**
  * @author Myeonghyeon Lee
  */
 @NullMarked
-public interface BoardRepository extends CrudRepository<Board, Long>, BoardRepositoryCustom {
+public interface BoardRepository extends ListCrudRepository<Board, Long>, BoardRepositoryCustom {
 }
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/PostDto.java b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/PostDto.java
index 85723196..1623f021 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/PostDto.java
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/PostDto.java
@@ -26,24 +26,23 @@
 import org.springframework.data.relational.core.mapping.Table;
 
 import lombok.Builder;
-import lombok.Value;
 
 import com.navercorp.spring.jdbc.plus.commons.annotations.SqlTableAlias;
 
 /**
  * @author Myeonghyeon Lee
  */
-@Value
 @Builder
 @Table("post")
-public class PostDto {
+public record PostDto(
 	@Id
-	Long id;
+	Long id,
 
 	@Column
-	Board.Post post;
+	Board.Post post,
 
 	@SqlTableAlias("p_labels")
 	@MappedCollection(idColumn = "board_id")
-	Set<Board.Label> labels;
+	Set<Board.Label> labels
+) {
 }
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/Order.java b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/Order.java
index 6d3927d7..9c98fafb 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/Order.java
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/Order.java
@@ -22,28 +22,24 @@
 import org.springframework.data.relational.core.mapping.Table;
 
 import lombok.Builder;
-import lombok.Getter;
 
 import com.navercorp.spring.jdbc.plus.commons.annotations.SqlFunction;
 
 /**
  * @author Myeonghyeon Lee
+ * @author IAM20
  */
 @Table("n_order")
-@Getter
 @Builder
-public class Order {
+public record Order(
 	@Id
-	private Long id;
+	Long id,
 
 	@SqlFunction(expressions = {SqlFunction.COLUMN_NAME, "0"})
-	private Long price;
+	Long price,
 
-	private OrderStatus status;
+	OrderStatus status,
 
-	private String purchaserNo;
-
-	public void complete() {
-		this.status = OrderStatus.COMPLETED;
-	}
+	String purchaserNo
+) {
 }
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderCriteria.java b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderCriteria.java
index 4bc039b1..a64bace6 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderCriteria.java
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderCriteria.java
@@ -21,23 +21,18 @@
 import lombok.Builder;
 
 /**
- *
- * public for OrderSql.kt access
- * Kotlin can not access Java Class's lombok generated methods.
- * https://d2.naver.com/helloworld/6685007
- *
- * 1. public field modifier (with final)
- * 2. Write getter method.
- * 3. Change kotlin(.kt) class
+ * Note: Kotlin cannot see Lombok-generated methods.
+ * <a href="https://d2.naver.com/helloworld/6685007">...</a>
  *
  * @author Myeonghyeon Lee
+ * @author IAM20
  */
 @Builder
-public class OrderCriteria {
-	public final String purchaserNo;
-	public final OrderStatus status;
-	public final OrderSort sortBy;
-
+public record OrderCriteria(
+	String purchaserNo,
+	OrderStatus status,
+	OrderSort sortBy
+) {
 	public enum OrderSort {
 		ID, PRICE
 	}
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepository.java b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepository.java
index df482338..fe23df4c 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepository.java
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepository.java
@@ -18,10 +18,10 @@
 
 package com.navercorp.spring.data.jdbc.plus.sql.guide.order;
 
-import org.springframework.data.repository.CrudRepository;
+import org.springframework.data.repository.ListCrudRepository;
 
 /**
  * @author Myeonghyeon Lee
  */
-public interface OrderRepository extends CrudRepository<Order, Long>, OrderRepositoryCustom {
+public interface OrderRepository extends ListCrudRepository<Order, Long>, OrderRepositoryCustom {
 }
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepositoryImpl.java b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepositoryImpl.java
index 4dfbb18d..8ac0d1ae 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepositoryImpl.java
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepositoryImpl.java
@@ -49,8 +49,8 @@ public List<Order> findByPurchaserNo(String purchaserNo) {
 	public List<Order> search(OrderCriteria criteria) {
 		String sql = this.sqls.search(criteria);
 		return find(sql, mapParameterSource()
-			.addValue("purchaserNo", criteria.purchaserNo)
-			.addValue("status", criteria.status.name()));
+			.addValue("purchaserNo", criteria.purchaserNo())
+			.addValue("status", criteria.status().name()));
 	}
 
 	@Override
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/sql/OrderSql.kt b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/sql/OrderSql.kt
index ee6164b5..95902266 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/sql/OrderSql.kt
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/main/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/sql/OrderSql.kt
@@ -25,6 +25,7 @@ import com.navercorp.spring.data.jdbc.plus.sql.support.SqlGeneratorSupport
 
 /**
  * @author Myeonghyeon Lee
+ * @author IAM20
  */
 class OrderSql : SqlGeneratorSupport() {
 
@@ -43,7 +44,6 @@ class OrderSql : SqlGeneratorSupport() {
         ${when (criteria.sortBy) {
             OrderSort.ID -> "ORDER BY id"
             OrderSort.PRICE -> "ORDER BY price"
-            else -> ""
         }}
         """
 
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/BoardRepositoryTest.java b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/BoardRepositoryTest.java
index 80102de2..c51d7972 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/BoardRepositoryTest.java
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/board/BoardRepositoryTest.java
@@ -18,21 +18,14 @@
 
 package com.navercorp.spring.data.jdbc.plus.sql.guide.board;
 
-import static java.util.Comparator.comparing;
-import static java.util.Comparator.comparingLong;
-import static java.util.stream.Collectors.toMap;
-import static org.assertj.core.api.Assertions.assertThat;
+import static com.navercorp.spring.data.jdbc.plus.sql.guide.test.ArbitrarySpec.fixtureMonkey;
+import static java.util.stream.Collectors.toSet;
+import static org.assertj.core.api.BDDAssertions.then;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashSet;
 import java.util.List;
-import java.util.Map;
 import java.util.Optional;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
+import java.util.Set;
 
-import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -40,15 +33,8 @@
 import org.springframework.test.context.ActiveProfiles;
 import org.springframework.transaction.annotation.Transactional;
 
-import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Audit;
-import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.AuditSecret;
-import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Comment;
-import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Config;
 import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Label;
-import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.LabelId;
-import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Memo;
 import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Post;
-import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Tag;
 
 /**
  * @author Myeonghyeon Lee
@@ -61,293 +47,7 @@ public class BoardRepositoryTest {
 	@Autowired
 	private BoardRepository sut;
 
-	private List<Board> boards = Arrays.asList(
-		Board.builder()
-			.name("repo")
-			.memo(Memo.builder().memo("board1 memo").build())
-					.labels(new HashSet<>(Arrays.asList(
-						Label.builder()
-							.id(LabelId.builder().title("label1").projectName("project1").build())
-							.name("label1")
-							.build(),
-						Label.builder()
-							.id(LabelId.builder().title("label2").projectName("project1").build())
-							.name("label2")
-							.build(),
-						Label.builder()
-							.id(LabelId.builder().title("label3").projectName("project1").build())
-							.name("label3")
-							.build()
-					)))
-			.posts(Arrays.asList(
-				Post.builder()
-					.postNo(1L)
-					.title("first post")
-					.content("hello world")
-					.tags(new HashSet<>(Arrays.asList(
-						Tag.builder().content("tag1").build(),
-						Tag.builder().content("tag2").build()
-					)))
-					.comments(Arrays.asList(
-						Comment.builder()
-							.content("comment1")
-							.audit(Audit.builder()
-								.name("naver2")
-								.memo(null)
-								.secret(AuditSecret.builder()
-									.secret("secret1")
-									.build())
-								.build())
-							.build(),
-						Comment.builder()
-							.content("comment2")
-							.audit(Audit.builder()
-								.name("naver2")
-								.memo(Memo.builder()
-									.memo("board post1 comment2 audit memo")
-									.build())
-								.secret(AuditSecret.builder()
-									.secret("secret2")
-									.build())
-								.build())
-							.build()
-					))
-					.configMap(Stream.of(
-						Config.builder()
-							.configKey("board1 post1 config-key")
-							.configValue("board1 post1 config-value")
-							.build(),
-						Config.builder()
-							.configKey("board1 post1 config-key2")
-							.configValue("board1 post1 config-value2")
-							.build(),
-						Config.builder()
-							.configKey("board1 post1 config-key3")
-							.configValue("board1 post1 config-value3")
-							.build())
-						.collect(toMap(Config::getConfigKey, config -> config)))
-					.audit(Audit.builder()
-						.name("naver1")
-						.memo(Memo.builder().memo("board post1 audit memo").build())
-						.secret(AuditSecret.builder()
-							.secret("secret1")
-							.build())
-						.build())
-					.memo(Memo.builder().memo("board post 1 memo").build())
-					.build(),
-				Post.builder()
-					.postNo(2L)
-					.title("second post")
-					.content("hello world2")
-					.tags(new HashSet<>(Arrays.asList(
-						Tag.builder().content("tag3").build(),
-						Tag.builder().content("tag4").build()
-					)))
-					.comments(Arrays.asList(
-						Comment.builder()
-							.content("comment3")
-							.audit(Audit.builder()
-								.name("naver3")
-								.memo(Memo.builder()
-									.memo("board post2 comment1 memo")
-									.build())
-								.secret(AuditSecret.builder()
-									.secret("secret3")
-									.build())
-								.build())
-							.build(),
-						Comment.builder()
-							.content("comment4")
-							.audit(Audit.builder()
-								.name("naver3")
-								.memo(null)
-								.secret(AuditSecret.builder()
-									.secret("secret3")
-									.build())
-								.build())
-							.build()
-					))
-					.configMap(null)
-					.audit(Audit.builder()
-						.name("naver2")
-						.memo(null)
-						.secret(AuditSecret.builder()
-							.secret("secret2")
-							.build())
-						.build())
-					.build()
-			))
-			.configMap(Stream.of(
-				Config.builder()
-					.configKey("board1 config-key")
-					.configValue("board1 config-value")
-					.build(),
-				Config.builder()
-					.configKey("board1 config-key2")
-					.configValue("board1 config-value2")
-					.build())
-				.collect(toMap(Config::getConfigKey, config -> config)))
-			.audit(Audit.builder()
-				.name("naver")
-				.memo(Memo.builder()
-					.memo("board1 audit memo")
-					.build())
-				.secret(AuditSecret.builder()
-					.secret("secret1")
-					.build())
-				.build())
-			.build(),
-		Board.builder()
-			.name("repo3")
-			.labels(new HashSet<>())
-			.posts(Arrays.asList(
-				Post.builder()
-					.postNo(5L)
-					.title("fifth post")
-					.content("hello world5")
-					.tags(new HashSet<>())
-					.comments(new ArrayList<>())
-					.audit(null)
-					.memo(Memo.builder()
-						.memo("board2 post1 memo")
-						.build())
-					.build(),
-				Post.builder()
-					.postNo(6L)
-					.title("sixth post")
-					.content("hello world6")
-					.tags(new HashSet<>(Arrays.asList(
-						Tag.builder().content("tag7").build(),
-						Tag.builder().content("tag8").build()
-					)))
-					.comments(Arrays.asList(
-						Comment.builder()
-							.content("comment8")
-							.audit(null)
-							.build(),
-						Comment.builder()
-							.content("comment8")
-							.audit(Audit.builder()
-								.name("naver5")
-								.memo(Memo.builder()
-									.memo("board2 comment2 audit memo")
-									.build())
-								.secret(null)
-								.build())
-							.build()
-					))
-					.audit(null)
-					.build()
-			))
-			.configMap(null)
-			.audit(null)
-			.build(),
-		Board.builder()
-			.name("repo2")
-			.labels(new HashSet<>(Arrays.asList(
-				Label.builder()
-					.id(LabelId.builder().title("label4").projectName("project2").build())
-					.name("label4")
-					.build(),
-				Label.builder()
-					.id(LabelId.builder().title("label5").projectName("project2").build())
-					.name("label5")
-					.build(),
-				Label.builder()
-					.id(LabelId.builder().title("label6").projectName("project2").build())
-					.name("label6")
-					.build()
-			)))
-			.posts(Arrays.asList(
-				Post.builder()
-					.postNo(3L)
-					.title("third post")
-					.content("hello world3")
-					.tags(new HashSet<>(Arrays.asList(
-						Tag.builder().content("tag5").build(),
-						Tag.builder().content("tag6").build()
-					)))
-					.comments(Arrays.asList(
-						Comment.builder()
-							.content("comment5")
-							.audit(Audit.builder()
-								.name("naver4")
-								.secret(AuditSecret.builder()
-									.secret("secret4")
-									.build())
-								.build())
-							.build(),
-						Comment.builder()
-							.content("comment6")
-							.audit(Audit.builder()
-								.name("naver4")
-								.secret(AuditSecret.builder()
-									.secret("secret4")
-									.build())
-								.build())
-							.build()
-					))
-					.audit(Audit.builder()
-						.name("naver3")
-						.secret(AuditSecret.builder()
-							.secret("secret3")
-							.build())
-						.build())
-					.memo(Memo.builder()
-						.memo("board2 post1 memo")
-						.build())
-					.build(),
-				Post.builder()
-					.postNo(4L)
-					.title("fourth post")
-					.content("hello world4")
-					.tags(new HashSet<>(Arrays.asList(
-						Tag.builder().content("tag7").build(),
-						Tag.builder().content("tag8").build()
-					)))
-					.comments(Arrays.asList(
-						Comment.builder()
-							.content("comment7")
-							.audit(Audit.builder()
-								.name("naver5")
-								.memo(null)
-								.secret(AuditSecret.builder()
-									.secret("secret5")
-									.build())
-								.build())
-							.build(),
-						Comment.builder()
-							.content("comment8")
-							.audit(Audit.builder()
-								.name("naver5")
-								.memo(Memo.builder()
-									.memo("board2 comment2 audit memo")
-									.build())
-								.secret(AuditSecret.builder()
-									.secret("secret5")
-									.build())
-								.build())
-							.build()
-					))
-					.audit(Audit.builder()
-						.name("naver4")
-						.memo(null)
-						.secret(AuditSecret.builder()
-							.secret("secret4")
-							.build())
-						.build())
-					.memo(null)
-					.build()
-			))
-			.audit(Audit.builder()
-				.name("naver2")
-				.memo(null)
-				.secret(AuditSecret.builder()
-					.secret("secret2")
-					.build())
-				.build())
-			.build()
-	);
+	List<Board> boards = fixtureMonkey.giveMe(Board.class, 3);
 
 	/**
 	 * Seems related to https://github.com/spring-projects/spring-data-relational/issues/2054
@@ -356,333 +56,82 @@ public class BoardRepositoryTest {
 	@Test
 	void findById() {
 		// given
-		sut.saveAll(boards);
+		List<Board> savedBoards = sut.saveAll(boards).stream()
+			.map(Board::sort)
+			.toList();
 
 		// when
-		Optional<Board> actual1 = this.sut.findById(boards.get(0).getId());
-		Optional<Board> actual2 = this.sut.findById(boards.get(1).getId());
-		Optional<Board> actual3 = this.sut.findById(boards.get(2).getId());
+		Optional<Board> actual1 = this.sut.findById(savedBoards.get(0).id());
+		Optional<Board> actual2 = this.sut.findById(savedBoards.get(1).id());
+		Optional<Board> actual3 = this.sut.findById(savedBoards.get(2).id());
 
 		// then
-		Assertions.assertThat(actual1).isPresent();
-		assertEquals(actual1.get(), boards.get(0));
-		Assertions.assertThat(actual2).isPresent();
-		assertEquals(actual2.get(), boards.get(1));
-		Assertions.assertThat(actual3).isPresent();
-		assertEquals(actual3.get(), boards.get(2));
+		then(actual1).isPresent().hasValue(savedBoards.get(0));
+		then(actual2).isPresent().hasValue(savedBoards.get(1));
+		then(actual3).isPresent().hasValue(savedBoards.get(2));
 	}
 
 	@Test
 	void findGraphById() {
 		// given
-		sut.saveAll(boards);
+		List<Board> savedBoards = sut.saveAll(boards).stream()
+			.map(Board::sort)
+			.toList();
 
 		// when
-		Optional<Board> actual1 = this.sut.findGraphById(boards.get(0).getId());
-		Optional<Board> actual2 = this.sut.findGraphById(boards.get(1).getId());
-		Optional<Board> actual3 = this.sut.findGraphById(boards.get(2).getId());
+		Optional<Board> actual1 = this.sut.findGraphById(savedBoards.get(0).id());
+		Optional<Board> actual2 = this.sut.findGraphById(savedBoards.get(1).id());
+		Optional<Board> actual3 = this.sut.findGraphById(savedBoards.get(2).id());
 
 		// then
-		Assertions.assertThat(actual1).isPresent();
-		assertEquals(actual1.get(), boards.get(0));
-		Assertions.assertThat(actual2).isPresent();
-		assertEquals(actual2.get(), boards.get(1));
-		Assertions.assertThat(actual3).isPresent();
-		assertEquals(actual3.get(), boards.get(2));
+		then(actual1).isPresent().hasValue(savedBoards.get(0));
+		then(actual2).isPresent().hasValue(savedBoards.get(1));
+		then(actual3).isPresent().hasValue(savedBoards.get(2));
 	}
 
 	@Test
 	void findAllGraph() {
 		// given
-		sut.saveAll(boards);
+		List<Board> savedBoards = sut.saveAll(boards).stream()
+			.map(Board::sort)
+			.toList();
 
 		// when
 		List<Board> actual = this.sut.findAllGraph();
 
 		// then
-		assertThat(actual).hasSize(3);
-		assertEquals(actual.get(0), boards.get(0));
-		assertEquals(actual.get(1), boards.get(1));
-		assertEquals(actual.get(2), boards.get(2));
+		then(actual).isEqualTo(savedBoards);
 	}
 
 	@Test
 	void findPostDtoByPostId() {
 		// given
-		sut.saveAll(boards);
-
-		// when
-		Optional<PostDto> actual1 = this.sut.findPostDtoByPostId(boards.get(0).getPosts().get(0).getId());
-		Optional<PostDto> actual2 = this.sut.findPostDtoByPostId(boards.get(0).getPosts().get(1).getId());
-		Optional<PostDto> actual3 = this.sut.findPostDtoByPostId(boards.get(1).getPosts().get(0).getId());
-		Optional<PostDto> actual4 = this.sut.findPostDtoByPostId(boards.get(1).getPosts().get(1).getId());
-		Optional<PostDto> actual5 = this.sut.findPostDtoByPostId(boards.get(2).getPosts().get(0).getId());
-		Optional<PostDto> actual6 = this.sut.findPostDtoByPostId(boards.get(2).getPosts().get(1).getId());
-
-		// then
-		Assertions.assertThat(actual1).isPresent();
-		assertThat(actual1.get().getId()).isEqualTo(boards.get(0).getPosts().get(0).getId());
-		assertEquals(actual1.get().getPost(), boards.get(0).getPosts().get(0));
-		assertLabelsEquals(
-			actual1.get().getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()),
-			boards.get(0).getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()));
-
-		Assertions.assertThat(actual2).isPresent();
-		assertThat(actual2.get().getId()).isEqualTo(boards.get(0).getPosts().get(1).getId());
-		assertEquals(actual2.get().getPost(), boards.get(0).getPosts().get(1));
-		assertLabelsEquals(
-			actual2.get().getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()),
-			boards.get(0).getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()));
-
-		Assertions.assertThat(actual3).isPresent();
-		assertThat(actual3.get().getId()).isEqualTo(boards.get(1).getPosts().get(0).getId());
-		assertEquals(actual3.get().getPost(), boards.get(1).getPosts().get(0));
-		assertLabelsEquals(
-			actual3.get().getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()),
-			boards.get(1).getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()));
-
-		Assertions.assertThat(actual4).isPresent();
-		assertThat(actual4.get().getId()).isEqualTo(boards.get(1).getPosts().get(1).getId());
-		assertEquals(actual4.get().getPost(), boards.get(1).getPosts().get(1));
-		assertLabelsEquals(
-			actual4.get().getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()),
-			boards.get(1).getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()));
-
-		Assertions.assertThat(actual5).isPresent();
-		assertThat(actual5.get().getId()).isEqualTo(boards.get(2).getPosts().get(0).getId());
-		assertEquals(actual5.get().getPost(), boards.get(2).getPosts().get(0));
-		assertLabelsEquals(
-			actual5.get().getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()),
-			boards.get(2).getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()));
-
-		Assertions.assertThat(actual6).isPresent();
-		assertThat(actual6.get().getId()).isEqualTo(boards.get(2).getPosts().get(1).getId());
-		assertEquals(actual6.get().getPost(), boards.get(2).getPosts().get(1));
-		assertLabelsEquals(
-			actual6.get().getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()),
-			boards.get(2).getLabels().stream()
-				.sorted(comparing(label -> label.getId().getTitle()))
-				.collect(Collectors.toList()));
-	}
-
-	private void assertEquals(Board actual, Board target) {
-		assertThat(actual.getId()).isEqualTo(target.getId());
-		assertThat(actual.getName()).isEqualTo(target.getName());
-
-		if (actual.getMemo() == null) {
-			assertThat(target.getMemo()).isNull();
-		} else {
-			assertThat(actual.getMemo().getMemo()).isEqualTo(target.getMemo().getMemo());
-		}
-
-		if (actual.getAudit() == null) {
-			assertThat(target.getAudit()).isNull();
-		} else {
-			assertThat(actual.getAudit().getId()).isEqualTo(target.getAudit().getId());
-			assertThat(actual.getAudit().getName()).isEqualTo(target.getAudit().getName());
-
-			if (actual.getAudit().getMemo() == null) {
-				assertThat(target.getAudit().getMemo()).isNull();
-			} else {
-				assertThat(actual.getAudit().getMemo().getMemo())
-					.isEqualTo(target.getAudit().getMemo().getMemo());
-			}
-
-			if (actual.getAudit().getSecret() == null) {
-				assertThat(target.getAudit().getSecret()).isNull();
-			} else {
-				assertThat(actual.getAudit().getSecret().getId())
-					.isEqualTo(target.getAudit().getSecret().getId());
-				assertThat(actual.getAudit().getSecret().getSecret())
-					.isEqualTo(target.getAudit().getSecret().getSecret());
-			}
-		}
-
-		if (target.getConfigMap() == null || target.getConfigMap().isEmpty()) {
-			assertThat(actual.getConfigMap()).isEmpty();
-		} else {
-			List<Map.Entry<String, Config>> actualConfigs = actual.getConfigMap().entrySet()
-				.stream()
-				.sorted(Map.Entry.comparingByKey())
-				.collect(Collectors.toList());
-			List<Map.Entry<String, Config>> targetConfigs = target.getConfigMap().entrySet()
-				.stream()
-				.sorted(Map.Entry.comparingByKey())
-				.collect(Collectors.toList());
-
-			assertThat(actualConfigs.size()).isEqualTo(targetConfigs.size());
-			for (int i = 0; i < actualConfigs.size(); i++) {
-				assertThat(actualConfigs.get(i).getKey())
-					.isEqualTo(targetConfigs.get(i).getKey());
-				assertThat(actualConfigs.get(i).getValue().getId())
-					.isEqualTo(targetConfigs.get(i).getValue().getId());
-				assertThat(actualConfigs.get(i).getValue().getConfigKey())
-					.isEqualTo(targetConfigs.get(i).getValue().getConfigKey());
-				assertThat(actualConfigs.get(i).getValue().getConfigValue())
-					.isEqualTo(targetConfigs.get(i).getValue().getConfigValue());
-			}
-		}
-
-		List<Label> actualLabels = actual.getLabels().stream()
-			.sorted(comparing(label -> label.getId().getTitle()))
-			.collect(Collectors.toList());
-		List<Label> boardLabels = target.getLabels().stream()
-			.sorted(comparing(label -> label.getId().getTitle()))
-			.collect(Collectors.toList());
-		assertLabelsEquals(actualLabels, boardLabels);
-
-		List<Post> actualPosts = actual.getPosts();
-		List<Post> boardPosts = target.getPosts();
-
-		assertThat(actualPosts.size()).isEqualTo(boardPosts.size());
-
-		for (int i = 0; i < actualPosts.size(); i++) {
-			assertEquals(actualPosts.get(i), boardPosts.get(i));
-		}
-	}
-
-	private void assertLabelsEquals(List<Label> actualLabels, List<Label> targetLabels) {
-		assertThat(actualLabels.size()).isEqualTo(targetLabels.size());
-
-		for (int i = 0; i < actualLabels.size(); i++) {
-			assertThat(actualLabels.get(i).getId().getTitle()).isEqualTo(targetLabels.get(i).getId().getTitle());
-			assertThat(actualLabels.get(i).getId().getProjectName())
-				.isEqualTo(targetLabels.get(i).getId().getProjectName());
-			assertThat(actualLabels.get(i).getName()).isEqualTo(targetLabels.get(i).getName());
-		}
-	}
-
-	private void assertEquals(Post actualPost, Post targetPost) {
-		assertThat(actualPost.getId()).isEqualTo(targetPost.getId());
-		assertThat(actualPost.getPostNo()).isEqualTo(targetPost.getPostNo());
-		assertThat(actualPost.getTitle()).isEqualTo(targetPost.getTitle());
-		assertThat(actualPost.getContent()).isEqualTo(targetPost.getContent());
-
-		if (actualPost.getMemo() == null) {
-			assertThat(targetPost.getMemo()).isNull();
-		} else {
-			assertThat(actualPost.getMemo().getMemo()).isEqualTo(targetPost.getMemo().getMemo());
-		}
-
-		if (actualPost.getAudit() == null) {
-			assertThat(targetPost.getAudit()).isNull();
-		} else {
-			assertThat(actualPost.getAudit().getId()).isEqualTo(targetPost.getAudit().getId());
-			assertThat(actualPost.getAudit().getName()).isEqualTo(targetPost.getAudit().getName());
-
-			if (actualPost.getAudit().getMemo() == null) {
-				assertThat(targetPost.getAudit().getMemo()).isNull();
-			} else {
-				assertThat(actualPost.getAudit().getMemo().getMemo())
-					.isEqualTo(targetPost.getAudit().getMemo().getMemo());
-			}
-
-			if (actualPost.getAudit().getSecret() == null) {
-				assertThat(targetPost.getAudit().getSecret()).isNull();
-			} else {
-				assertThat(actualPost.getAudit().getSecret().getId())
-					.isEqualTo(targetPost.getAudit().getSecret().getId());
-				assertThat(actualPost.getAudit().getSecret().getSecret())
-					.isEqualTo(targetPost.getAudit().getSecret().getSecret());
-			}
-		}
-
-		List<Tag> actualTags = actualPost.getTags().stream()
-			.sorted(comparingLong(Tag::getId))
-			.collect(Collectors.toList());
-		List<Tag> postTags = targetPost.getTags().stream()
-			.sorted(comparingLong(Tag::getId))
-			.collect(Collectors.toList());
-
-		assertThat(actualTags.size()).isEqualTo(postTags.size());
-
-		for (int i = 0; i < actualTags.size(); i++) {
-			assertThat(actualTags.get(i).getId()).isEqualTo(postTags.get(i).getId());
-			assertThat(actualTags.get(i).getContent()).isEqualTo(postTags.get(i).getContent());
-		}
-
-		List<Comment> actualComments = actualPost.getComments();
-		List<Comment> postComments = targetPost.getComments();
-
-		assertThat(actualComments.size()).isEqualTo(postComments.size());
-
-		for (int i = 0; i < actualTags.size(); i++) {
-			assertThat(actualComments.get(i).getId())
-				.isEqualTo(postComments.get(i).getId());
-			assertThat(actualComments.get(i).getContent())
-				.isEqualTo(postComments.get(i).getContent());
-
-			if (actualComments.get(i).getAudit() == null) {
-				assertThat(postComments.get(i).getAudit()).isNull();
-			} else {
-				assertThat(actualComments.get(i).getAudit().getId())
-					.isEqualTo(postComments.get(i).getAudit().getId());
-				assertThat(actualComments.get(i).getAudit().getName())
-					.isEqualTo(postComments.get(i).getAudit().getName());
-
-				if (actualComments.get(i).getAudit().getMemo() == null) {
-					assertThat(postComments.get(i).getAudit().getMemo()).isNull();
-				} else {
-					assertThat(actualComments.get(i).getAudit().getMemo().getMemo())
-						.isEqualTo(postComments.get(i).getAudit().getMemo().getMemo());
-				}
-
-				if (actualComments.get(i).getAudit().getSecret() == null) {
-					assertThat(postComments.get(i).getAudit().getSecret()).isNull();
-				} else {
-					assertThat(actualComments.get(i).getAudit().getSecret().getId())
-						.isEqualTo(postComments.get(i).getAudit().getSecret().getId());
-					assertThat(actualComments.get(i).getAudit().getSecret().getSecret())
-						.isEqualTo(postComments.get(i).getAudit().getSecret().getSecret());
-				}
-			}
-		}
-
-		if (targetPost.getConfigMap() == null || targetPost.getConfigMap().isEmpty()) {
-			assertThat(actualPost.getConfigMap()).isEmpty();
-		} else {
-			List<Map.Entry<String, Config>> actualConfigs = actualPost.getConfigMap().entrySet()
-				.stream()
-				.sorted(Map.Entry.comparingByKey())
-				.collect(Collectors.toList());
-			List<Map.Entry<String, Config>> targetConfigs = targetPost.getConfigMap().entrySet()
-				.stream()
-				.sorted(Map.Entry.comparingByKey())
-				.collect(Collectors.toList());
-
-			assertThat(actualConfigs.size()).isEqualTo(targetConfigs.size());
-			for (int i = 0; i < actualConfigs.size(); i++) {
-				assertThat(actualConfigs.get(i).getKey())
-					.isEqualTo(targetConfigs.get(i).getKey());
-				assertThat(actualConfigs.get(i).getValue().getId())
-					.isEqualTo(targetConfigs.get(i).getValue().getId());
-				assertThat(actualConfigs.get(i).getValue().getConfigKey())
-					.isEqualTo(targetConfigs.get(i).getValue().getConfigKey());
-				assertThat(actualConfigs.get(i).getValue().getConfigValue())
-					.isEqualTo(targetConfigs.get(i).getValue().getConfigValue());
-			}
-		}
+		List<Board> savedBoards = sut.saveAll(boards).stream()
+			.map(Board::sort)
+			.toList();
+
+		List<Post> savedPosts = savedBoards.stream()
+			.map(Board::posts)
+			.flatMap(List::stream)
+			.toList();
+
+		Set<Label> savedLabels = savedBoards.stream()
+			.map(Board::labels)
+			.flatMap(Set::stream)
+			.collect(toSet());
+
+		savedPosts.forEach(expected -> {
+			// when
+			Optional<PostDto> actual = this.sut.findPostDtoByPostId(expected.id());
+
+			// then
+			then(actual).isPresent().hasValueSatisfying(dto -> {
+				then(dto.id()).isEqualTo(expected.id());
+				then(dto.post()).isEqualTo(expected);
+				dto.labels().forEach(label -> {
+					then(label).isIn(savedLabels);
+				});
+			});
+		});
 	}
 }
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepositoryTest.java b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepositoryTest.java
index 31dadeb7..cf4e732a 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepositoryTest.java
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/order/OrderRepositoryTest.java
@@ -18,14 +18,13 @@
 
 package com.navercorp.spring.data.jdbc.plus.sql.guide.order;
 
-import static java.util.Comparator.comparing;
-import static org.assertj.core.api.Assertions.assertThat;
+import static com.navercorp.fixturemonkey.api.expression.JavaGetterMethodPropertySelector.javaGetter;
+import static com.navercorp.spring.data.jdbc.plus.sql.guide.test.ArbitrarySpec.fixtureMonkey;
+import static org.assertj.core.api.BDDAssertions.then;
 
-import java.util.Arrays;
 import java.util.List;
 import java.util.Optional;
 
-import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
@@ -42,59 +41,41 @@ class OrderRepositoryTest {
 	@Autowired
 	private OrderRepository sut;
 
-	private List<Order> orders = Arrays.asList(
-		Order.builder()
-			.price(1000L)
-			.status(OrderStatus.PLACE)
-			.purchaserNo("navercorp")
-			.build(),
-		Order.builder()
-			.price(5000L)
-			.status(OrderStatus.PLACE)
-			.purchaserNo("navercorp")
-			.build(),
-		Order.builder()
-			.price(3000L)
-			.status(OrderStatus.COMPLETED)
-			.purchaserNo("navercorp")
-			.build());
+	List<Order> samples = fixtureMonkey.giveMeBuilder(Order.class)
+		.set(javaGetter(Order::purchaserNo), "navercorp")
+		.sampleList(3);
 
 	@Test
 	void findById() {
 		// given
-		sut.saveAll(orders);
+		List<Order> orders = sut.saveAll(samples);
 
 		// when
-		Optional<Order> actual = sut.findById(orders.get(0).getId());
+		Optional<Order> actual = sut.findById(orders.get(0).id());
 
 		// then
-		Assertions.assertThat(actual).isPresent();
-		assertThat(actual.get().getId()).isEqualTo(orders.get(0).getId());
+		then(actual).isPresent();
+		then(actual.get().id()).isEqualTo(orders.get(0).id());
 	}
 
 	@Test
 	void findByPurchaserNo() {
 		// given
-		sut.saveAll(orders);
+		sut.saveAll(samples);
 
 		// when
 		List<Order> actual = sut.findByPurchaserNo("navercorp");
 
 		// then
-		actual.sort(comparing(Order::getPrice));
-		Assertions.assertThat(actual).hasSize(3);
-		assertThat(actual.get(0).getPrice()).isEqualTo(1000L);
-		assertThat(actual.get(0).getStatus()).isEqualTo(OrderStatus.PLACE);
-		assertThat(actual.get(1).getPrice()).isEqualTo(3000L);
-		assertThat(actual.get(1).getStatus()).isEqualTo(OrderStatus.COMPLETED);
-		assertThat(actual.get(2).getPrice()).isEqualTo(5000L);
-		assertThat(actual.get(2).getStatus()).isEqualTo(OrderStatus.PLACE);
+		then(actual).hasSize(3);
+		then(actual).allMatch(o -> o.purchaserNo().equals("navercorp"));
 	}
 
 	@Test
 	void search() {
 		// given
-		sut.saveAll(orders);
+		sut.saveAll(samples);
+
 		OrderCriteria criteria = OrderCriteria.builder()
 			.purchaserNo("navercorp")
 			.status(OrderStatus.PLACE)
@@ -105,23 +86,24 @@ void search() {
 		List<Order> actual = sut.search(criteria);
 
 		// then
-		actual.sort(comparing(Order::getPrice));
-		Assertions.assertThat(actual).hasSize(2);
-		assertThat(actual.get(0).getPrice()).isEqualTo(1000L);
-		assertThat(actual.get(0).getStatus()).isEqualTo(OrderStatus.PLACE);
-		assertThat(actual.get(1).getPrice()).isEqualTo(5000L);
-		assertThat(actual.get(1).getStatus()).isEqualTo(OrderStatus.PLACE);
+		then(actual).hasSize(
+			(int)samples.stream()
+				.filter(it -> it.status() == OrderStatus.PLACE)
+				.count()
+		);
+		then(actual).allMatch(o -> o.purchaserNo().equals("navercorp"));
+		then(actual).allMatch(o -> o.status().equals(OrderStatus.PLACE));
 	}
 
 	@Test
 	void countByPurchaserNo() {
 		// given
-		sut.saveAll(orders);
+		sut.saveAll(samples);
 
 		// when
 		long actual = sut.countByPurchaserNo("navercorp");
 
 		// then
-		assertThat(actual).isEqualTo(orders.size());
+		then(actual).isEqualTo(3);
 	}
 }
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/pay/PayHistoryRepositoryTest.java b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/pay/PayHistoryRepositoryTest.java
index 0734496e..615038bc 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/pay/PayHistoryRepositoryTest.java
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/pay/PayHistoryRepositoryTest.java
@@ -1,11 +1,10 @@
 package com.navercorp.spring.data.jdbc.plus.sql.guide.pay;
 
-import static org.assertj.core.api.Assertions.assertThat;
+import static com.navercorp.fixturemonkey.api.expression.JavaGetterMethodPropertySelector.javaGetter;
+import static com.navercorp.spring.data.jdbc.plus.sql.guide.test.ArbitrarySpec.fixtureMonkey;
+import static org.assertj.core.api.BDDAssertions.then;
 
-import java.math.BigDecimal;
 import java.util.List;
-import java.util.Set;
-import java.util.concurrent.atomic.AtomicLong;
 
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -13,79 +12,62 @@
 import org.springframework.test.context.ActiveProfiles;
 import org.springframework.transaction.annotation.Transactional;
 
+import com.navercorp.fixturemonkey.ArbitraryBuilder;
+
 @Transactional
 @SpringBootTest
 @ActiveProfiles("test")
 class PayHistoryRepositoryTest {
-	private static final AtomicLong ID_GENERATOR = new AtomicLong();
-
 	@Autowired
 	PayHistoryRepository sut;
 
+	ArbitraryBuilder<PayHistory> fixtures = fixtureMonkey.giveMeBuilder(PayHistory.class)
+		.set(javaGetter(PayHistory::orderId), 940329L);
+
 	@Test
 	void insert() {
 		// given
-		PayHistory payHistory = PayHistory.from(samplePay());
+		PayHistory payHistory = fixtures.sample();
 
 		// when
 		var result = sut.save(payHistory);
 
-		// then
-		assertThat(sut.findById(result.id())).isPresent().hasValueSatisfying(actual -> {
-			assertThat(actual.amount()).isEqualTo(payHistory.amount());
-			assertThat(actual.isNew()).isFalse();
+		then(sut.findById(result.id())).isPresent().hasValueSatisfying(actual -> {
+			then(actual.amount()).isEqualTo(payHistory.amount());
+			then(actual.isNew()).isFalse();
 		});
 	}
 
 	@Test
 	void findByOrderNo() {
 		// given
-		List<PayHistory> payHistories = List.of(
-			PayHistory.from(samplePay()),
-			PayHistory.from(samplePay()),
-			PayHistory.from(samplePay()),
-			PayHistory.from(samplePay()),
-			PayHistory.from(samplePay())
-		);
+		List<PayHistory> payHistories = fixtures
+			.set(javaGetter(PayHistory::amount), 1000L)
+			.sampleList(5);
 
 		// when
 		sut.saveAll(payHistories);
 
-		// then
-		assertThat(sut.findByOrderNo(940329L)).hasSize(5).allSatisfy(actual -> {
-			assertThat(actual.amount()).isEqualTo(1000L);
-			assertThat(actual.isNew()).isFalse();
+		then(sut.findByOrderNo(940329L)).hasSize(5).allSatisfy(actual -> {
+			then(actual.amount()).isEqualTo(1000L);
+			then(actual.isNew()).isFalse();
 		});
 	}
 
 	@Test
 	void findByOrderId() {
 		// given
-		List<PayHistory> payHistories = List.of(
-			PayHistory.from(samplePay()),
-			PayHistory.from(samplePay()),
-			PayHistory.from(samplePay()),
-			PayHistory.from(samplePay()),
-			PayHistory.from(samplePay())
-		);
+		List<PayHistory> payHistories = fixtures
+			.set(javaGetter(PayHistory::amount), 1000L)
+			.sampleList(5);
 
 		// when
 		sut.saveAll(payHistories);
 
-		// then
-		assertThat(sut.findByOrderId(940329L)).hasSize(5).allSatisfy(actual -> {
-			assertThat(actual.amount()).isEqualTo(1000L);
-			assertThat(actual.isNew()).isFalse();
+		then(sut.findByOrderId(940329L)).hasSize(5).allSatisfy(actual -> {
+			then(actual.amount()).isEqualTo(1000L);
+			then(actual.isNew()).isFalse();
 		});
 	}
-
-	Pay samplePay() {
-		return Pay.builder()
-			.id(ID_GENERATOR.incrementAndGet())
-			.amount(BigDecimal.valueOf(1000L))
-			.orderId(940329L)
-			.payAdmissions(Set.of())
-			.build();
-	}
 }
 
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/pay/PayRepositoryTest.kt b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/pay/PayRepositoryTest.kt
index 3c59e3ff..db9a892d 100644
--- a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/pay/PayRepositoryTest.kt
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/pay/PayRepositoryTest.kt
@@ -1,11 +1,11 @@
 package com.navercorp.spring.data.jdbc.plus.sql.guide.pay
 
+import com.navercorp.spring.data.jdbc.plus.sql.guide.test.ArbitrarySpec.fixtureMonkey
 import org.assertj.core.api.BDDAssertions.then
 import org.junit.jupiter.api.Test
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.test.context.SpringBootTest
 import org.springframework.test.context.ActiveProfiles
-import java.math.BigDecimal
 
 @SpringBootTest
 @ActiveProfiles("test")
@@ -15,25 +15,16 @@ class PayRepositoryTest {
 
     @Test
     fun saveAll() {
-        val insertedId = this.sut.saveAll((1..5).map { sample() })
-            .mapNotNull { it.id }
+        // Given
+        val samples = fixtureMonkey.giveMe(Pay::class.java, 5)
+            .let { this.sut.saveAll(it) }
 
-        val actual = this.sut.findAllById(insertedId)
+        // When
+        val insertedIds = this.sut.saveAll(samples).mapNotNull { it.id }
+        val actual = this.sut.findAllById(insertedIds)
 
         then(actual).hasSize(5).allSatisfy {
             then(it.payAdmissions).isNotEmpty()
         }
     }
-
-    fun sample(): Pay = Pay.builder()
-        .amount(BigDecimal.valueOf(1000L))
-        .orderId(940329L)
-        .payAdmissions(
-            setOf(
-                PayAdmission(null, null, BigDecimal.valueOf(1000L), "CARD"),
-                PayAdmission(null, null, BigDecimal.valueOf(1000L), "BANK"),
-                PayAdmission(null, null, BigDecimal.valueOf(1000L), "VIRTUAL_ACCOUNT")
-            ),
-        )
-        .build()
 }
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/ArbitrarySpec.java b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/ArbitrarySpec.java
new file mode 100644
index 00000000..9d0cbcbe
--- /dev/null
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/ArbitrarySpec.java
@@ -0,0 +1,88 @@
+package com.navercorp.spring.data.jdbc.plus.sql.guide.test;
+
+import java.math.BigDecimal;
+
+import org.jspecify.annotations.NonNull;
+
+import net.jqwik.api.Arbitraries;
+import net.jqwik.api.Arbitrary;
+import net.jqwik.api.arbitraries.BigDecimalArbitrary;
+import net.jqwik.api.arbitraries.LongArbitrary;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import lombok.experimental.UtilityClass;
+
+import com.navercorp.fixturemonkey.FixtureMonkey;
+import com.navercorp.fixturemonkey.api.jqwik.JavaTypeArbitraryGenerator;
+import com.navercorp.fixturemonkey.api.jqwik.JqwikPlugin;
+import com.navercorp.fixturemonkey.buildergroup.ArbitraryBuilderGroup;
+import com.navercorp.fixturemonkey.jackson.introspector.JacksonObjectArbitraryIntrospector;
+import com.navercorp.fixturemonkey.jackson.plugin.JacksonPlugin;
+import com.navercorp.fixturemonkey.jakarta.validation.plugin.JakartaValidationPlugin;
+import com.navercorp.fixturemonkey.resolver.ArbitraryBuilderCandidateList;
+
+/**
+ * Shared FixtureMonkey configuration for tests
+ */
+@UtilityClass
+public class ArbitrarySpec {
+	public static final FixtureMonkey fixtureMonkey = FixtureMonkey.builder()
+		.objectIntrospector(JacksonObjectArbitraryIntrospector.INSTANCE)
+		.plugin(new JacksonPlugin())
+		.plugin(new JakartaValidationPlugin())
+		.plugin(
+			new JqwikPlugin()
+				.javaTypeArbitraryGenerator(CustomJavaTypeArbitraryGenerator.INSTANCE)
+		)
+		.defaultNotNull(true)
+		.registerGroup(ArbitrarySpecs.INSTANCE)
+		.build();
+
+	static final Arbitrary<@NonNull Long> MONEY_ARBITRARY = Arbitraries.longs().between(10_000L, 100_000L);
+
+	static Arbitrary<Long> UNIQUE_LONG = Arbitraries.create(System::nanoTime);
+
+	static Arbitrary<String> UNIQUE_ID = Arbitraries.create(System::nanoTime).map(String::valueOf);
+
+	@NoArgsConstructor(access = AccessLevel.PRIVATE)
+	private static class ArbitrarySpecs implements ArbitraryBuilderGroup {
+		private static final ArbitrarySpecs INSTANCE = new ArbitrarySpecs();
+
+		@Override
+		public ArbitraryBuilderCandidateList generateCandidateList() {
+			return ArbitraryBuilderCandidateList.create()
+				.add(PaySpec.ADMISSION_INSTANCE)
+				.add(PaySpec.PAY_INSTANCE)
+				.add(PaySpec.HISTORY_INSTANCE)
+				.add(OrderSpec.ORDER_INSTANCE)
+				.add(BoardSpec.BOARD_INSTANCE)
+				.add(BoardSpec.LABEL_INSTANCE)
+				.add(BoardSpec.LABEL_ID_INSTANCE)
+				.add(BoardSpec.POST_INSTANCE)
+				.add(BoardSpec.TAG_INSTANCE)
+				.add(BoardSpec.COMMENT_INSTANCE)
+				.add(BoardSpec.AUDIT_INSTANCE)
+				.add(BoardSpec.AUDIT_SECRET_INSTANCE)
+				.add(BoardSpec.MEMO_INSTANCE);
+		}
+	}
+
+	@NoArgsConstructor(access = AccessLevel.PRIVATE)
+	private static class CustomJavaTypeArbitraryGenerator implements JavaTypeArbitraryGenerator {
+		private static final CustomJavaTypeArbitraryGenerator INSTANCE = new CustomJavaTypeArbitraryGenerator();
+
+		@Override
+		public BigDecimalArbitrary bigDecimals() {
+			return Arbitraries.bigDecimals()
+				.between(BigDecimal.valueOf(10_000L), BigDecimal.valueOf(100_000_000L));
+		}
+
+		@Override
+		public LongArbitrary longs() {
+			return Arbitraries.longs()
+				.between(10_000L, 100_000L);
+		}
+	}
+}
+
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/BoardSpec.java b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/BoardSpec.java
new file mode 100644
index 00000000..402859d3
--- /dev/null
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/BoardSpec.java
@@ -0,0 +1,197 @@
+/*
+ * Spring JDBC Plus
+ *
+ * Copyright 2020-2025 NAVER Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.navercorp.spring.data.jdbc.plus.sql.guide.test;
+
+import static com.navercorp.fixturemonkey.api.expression.JavaGetterMethodPropertySelector.javaGetter;
+import static com.navercorp.spring.data.jdbc.plus.sql.guide.test.ArbitrarySpec.UNIQUE_LONG;
+import static java.util.stream.Collectors.toMap;
+
+import java.util.LinkedHashSet;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.UUID;
+
+import org.jspecify.annotations.NonNull;
+
+import net.jqwik.api.Arbitraries;
+import net.jqwik.api.Arbitrary;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+
+import com.navercorp.fixturemonkey.buildergroup.ArbitraryBuilderCandidate;
+import com.navercorp.fixturemonkey.resolver.ArbitraryBuilderCandidateFactory;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Audit;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.AuditSecret;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Comment;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Config;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Label;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.LabelId;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Memo;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Post;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.board.Board.Tag;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+class BoardSpec {
+	static final ArbitraryBuilderCandidate<Board> BOARD_INSTANCE = createBoard();
+	static final ArbitraryBuilderCandidate<Label> LABEL_INSTANCE = createLabel();
+	static final ArbitraryBuilderCandidate<LabelId> LABEL_ID_INSTANCE = createLabelId();
+	static final ArbitraryBuilderCandidate<Post> POST_INSTANCE = createPost();
+	static final ArbitraryBuilderCandidate<Tag> TAG_INSTANCE = createTag();
+	static final ArbitraryBuilderCandidate<Comment> COMMENT_INSTANCE = createComment();
+	static final ArbitraryBuilderCandidate<Audit> AUDIT_INSTANCE = createAudit();
+	static final ArbitraryBuilderCandidate<AuditSecret> AUDIT_SECRET_INSTANCE = createAuditSecret();
+	static final ArbitraryBuilderCandidate<Memo> MEMO_INSTANCE = createMemo();
+
+	private static final Arbitrary<@NonNull String> BOARD_NAME_ARBITRARY =
+		Arbitraries.strings().alpha().ofMinLength(5).ofMaxLength(20);
+	private static final Arbitrary<@NonNull String> TITLE_ARBITRARY =
+		Arbitraries.strings().alpha().ofMinLength(5).ofMaxLength(50);
+	private static final Arbitrary<@NonNull String> CONTENT_ARBITRARY =
+		Arbitraries.strings().alpha().ofMinLength(10).ofMaxLength(200);
+	private static final Arbitrary<@NonNull String> PROJECT_NAME_ARBITRARY =
+		Arbitraries.strings().alpha().ofMinLength(5).ofMaxLength(20);
+	private static final Arbitrary<@NonNull Long> POST_NO_ARBITRARY =
+		Arbitraries.longs().between(1L, 1000L);
+	private static final Arbitrary<@NonNull Map<String, Config>> CONFIG_MAP_ARBITRARY = config();
+
+	private static ArbitraryBuilderCandidate<Board> createBoard() {
+		return ArbitraryBuilderCandidateFactory.of(Board.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.setNull(javaGetter(Board::id))
+					.set(javaGetter(Board::name), BOARD_NAME_ARBITRARY)
+					.size(javaGetter(Board::labels), 1, 5)
+					.size(javaGetter(Board::posts), 2, 3)
+					.set(
+						javaGetter(Board::posts).allIndex(Post.class).into(Post::configMap),
+						CONFIG_MAP_ARBITRARY
+					)
+					.thenApply((board, boardArbitraryBuilder) -> {
+						boardArbitraryBuilder
+							.set(javaGetter(Board::labels), new LinkedHashSet(board.labels()))
+							.set(
+								javaGetter(Board::configMap),
+								board.configMap().entrySet().stream()
+									.collect(
+										toMap(
+											entry -> entry.getValue().configKey(),
+											Entry::getValue
+										)
+									)
+							);
+					})
+			);
+	}
+
+	private static ArbitraryBuilderCandidate<Label> createLabel() {
+		return ArbitraryBuilderCandidateFactory.of(Label.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.set(javaGetter(Label::name), TITLE_ARBITRARY)
+			);
+	}
+
+	private static ArbitraryBuilderCandidate<LabelId> createLabelId() {
+		return ArbitraryBuilderCandidateFactory.of(LabelId.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.set(javaGetter(LabelId::title), TITLE_ARBITRARY)
+					.set(javaGetter(LabelId::projectName), PROJECT_NAME_ARBITRARY)
+			);
+	}
+
+	private static ArbitraryBuilderCandidate<Post> createPost() {
+		return ArbitraryBuilderCandidateFactory.of(Post.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.set(javaGetter(Post::id), UNIQUE_LONG)
+					.set(javaGetter(Post::postNo), POST_NO_ARBITRARY)
+					.set(javaGetter(Post::title), TITLE_ARBITRARY)
+					.set(javaGetter(Post::content), CONTENT_ARBITRARY)
+					.size(javaGetter(Post::tags), 0, 5)
+					.size(javaGetter(Post::comments), 0, 3)
+			);
+	}
+
+	private static ArbitraryBuilderCandidate<Tag> createTag() {
+		return ArbitraryBuilderCandidateFactory.of(Tag.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.setNull(javaGetter(Tag::id))
+					.set(javaGetter(Tag::content), CONTENT_ARBITRARY)
+			);
+	}
+
+	private static ArbitraryBuilderCandidate<Comment> createComment() {
+		return ArbitraryBuilderCandidateFactory.of(Comment.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.setNull(javaGetter(Comment::id))
+					.set(javaGetter(Comment::content), CONTENT_ARBITRARY)
+			);
+	}
+
+	private static ArbitraryBuilderCandidate<Audit> createAudit() {
+		return ArbitraryBuilderCandidateFactory.of(Audit.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.setNull(javaGetter(Audit::id))
+					.set(javaGetter(Audit::name), BOARD_NAME_ARBITRARY)
+			);
+	}
+
+	private static ArbitraryBuilderCandidate<AuditSecret> createAuditSecret() {
+		return ArbitraryBuilderCandidateFactory.of(AuditSecret.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.setNull(javaGetter(AuditSecret::id))
+					.set(javaGetter(AuditSecret::secret), Arbitraries.strings().alpha().ofMinLength(10).ofMaxLength(50))
+			);
+	}
+
+	private static ArbitraryBuilderCandidate<Memo> createMemo() {
+		return ArbitraryBuilderCandidateFactory.of(Memo.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.set(javaGetter(Memo::memo), CONTENT_ARBITRARY)
+			);
+	}
+
+	private static Arbitrary<Map<String, Config>> config() {
+		return Arbitraries.maps(
+			Arbitraries.create(UUID::randomUUID).map(UUID::toString),
+			Arbitraries.strings().alpha().ofMinLength(5).ofMaxLength(50)
+		).ofMinSize(0).ofMaxSize(5)
+			.map(map -> {
+				return map.entrySet().stream()
+					.collect(
+						toMap(
+							Entry::getKey,
+							entry -> Config.builder()
+								.configKey(entry.getKey())
+								.configValue(entry.getValue())
+								.build()
+						)
+					);
+			});
+	}
+}
+
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/OrderSpec.java b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/OrderSpec.java
new file mode 100644
index 00000000..6d218cc1
--- /dev/null
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/OrderSpec.java
@@ -0,0 +1,32 @@
+package com.navercorp.spring.data.jdbc.plus.sql.guide.test;
+
+import static com.navercorp.fixturemonkey.api.expression.JavaGetterMethodPropertySelector.javaGetter;
+
+import org.jspecify.annotations.NonNull;
+
+import net.jqwik.api.Arbitraries;
+import net.jqwik.api.Arbitrary;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+
+import com.navercorp.fixturemonkey.buildergroup.ArbitraryBuilderCandidate;
+import com.navercorp.fixturemonkey.resolver.ArbitraryBuilderCandidateFactory;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.order.Order;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+class OrderSpec {
+	static final ArbitraryBuilderCandidate<Order> ORDER_INSTANCE = createOrder();
+
+	private static final Arbitrary<@NonNull String> PURCHASER_NO_ARBITRARY =
+		Arbitraries.strings().alpha().ofMinLength(5).ofMaxLength(10);
+
+	private static ArbitraryBuilderCandidate<Order> createOrder() {
+		return ArbitraryBuilderCandidateFactory.of(Order.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.setNull(javaGetter(Order::id))
+					.set(javaGetter(Order::purchaserNo), PURCHASER_NO_ARBITRARY)
+			);
+	}
+}
diff --git a/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/PaySpec.java b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/PaySpec.java
new file mode 100644
index 00000000..d8079944
--- /dev/null
+++ b/guide-projects/plus-sql-java-kotlin-guide/src/test/java/com/navercorp/spring/data/jdbc/plus/sql/guide/test/PaySpec.java
@@ -0,0 +1,55 @@
+package com.navercorp.spring.data.jdbc.plus.sql.guide.test;
+
+import static com.navercorp.fixturemonkey.api.expression.JavaGetterMethodPropertySelector.javaGetter;
+
+import net.jqwik.api.Arbitraries;
+import net.jqwik.api.Arbitrary;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+
+import com.navercorp.fixturemonkey.buildergroup.ArbitraryBuilderCandidate;
+import com.navercorp.fixturemonkey.resolver.ArbitraryBuilderCandidateFactory;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.pay.Pay;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.pay.PayAdmission;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.pay.PayHistory;
+import com.navercorp.spring.data.jdbc.plus.sql.guide.pay.PayHistory.PayHistoryId;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+class PaySpec {
+	static final ArbitraryBuilderCandidate<Pay> PAY_INSTANCE = createPay();
+
+	static final ArbitraryBuilderCandidate<PayAdmission> ADMISSION_INSTANCE = createAdmission();
+
+	static final ArbitraryBuilderCandidate<PayHistory> HISTORY_INSTANCE = createHistory();
+
+	private static final Arbitrary<String> PAY_METHOD_TYPE_ARBITRARY =
+		Arbitraries.of("CARD", "BANK", "VIRTUAL_ACCOUNT");
+
+	private static ArbitraryBuilderCandidate<Pay> createPay() {
+		return ArbitraryBuilderCandidateFactory.of(Pay.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.setNull(javaGetter(Pay::id))
+					.size(javaGetter(Pay::payAdmissions), 1, 3)
+			);
+	}
+
+	private static ArbitraryBuilderCandidate<PayAdmission> createAdmission() {
+		return ArbitraryBuilderCandidateFactory.of(PayAdmission.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.setNull(javaGetter(PayAdmission::id))
+					.setNull(javaGetter(PayAdmission::payId))
+					.set(javaGetter(PayAdmission::payMethodType), PAY_METHOD_TYPE_ARBITRARY)
+			);
+	}
+
+	private static ArbitraryBuilderCandidate<PayHistory> createHistory() {
+		return ArbitraryBuilderCandidateFactory.of(PayHistory.class)
+			.builder(arbitraryBuilder ->
+				arbitraryBuilder
+					.setNull(javaGetter(PayHistory::id).into(PayHistoryId::payHistoryNo))
+			);
+	}
+}