diff --git a/src/main/java/com/beotkkot/qtudy/domain/category/Category.java b/src/main/java/com/beotkkot/qtudy/domain/category/Category.java
index 8f3c20c..a3615ec 100644
--- a/src/main/java/com/beotkkot/qtudy/domain/category/Category.java
+++ b/src/main/java/com/beotkkot/qtudy/domain/category/Category.java
@@ -5,10 +5,8 @@
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
-import lombok.Setter;
 
 @Getter
-@Setter
 @NoArgsConstructor
 @AllArgsConstructor
 @Entity
diff --git a/src/main/java/com/beotkkot/qtudy/domain/comments/Comments.java b/src/main/java/com/beotkkot/qtudy/domain/comments/Comments.java
index 12a5bd0..2ca4235 100644
--- a/src/main/java/com/beotkkot/qtudy/domain/comments/Comments.java
+++ b/src/main/java/com/beotkkot/qtudy/domain/comments/Comments.java
@@ -5,7 +5,6 @@
 
 @Builder
 @Getter
-@Setter
 @NoArgsConstructor
 @AllArgsConstructor
 @Entity
@@ -24,4 +23,8 @@ public class Comments {
     private String content;
 
     private String createdAt;
+
+    public void updateContent(String content) {
+        this.content = content;
+    }
 }
diff --git a/src/main/java/com/beotkkot/qtudy/domain/interests/Interests.java b/src/main/java/com/beotkkot/qtudy/domain/interests/Interests.java
index a9999e1..ffcfd4b 100644
--- a/src/main/java/com/beotkkot/qtudy/domain/interests/Interests.java
+++ b/src/main/java/com/beotkkot/qtudy/domain/interests/Interests.java
@@ -7,10 +7,8 @@
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
-import lombok.Setter;
 
 @Getter
-@Setter
 @NoArgsConstructor
 @AllArgsConstructor
 @Entity
diff --git a/src/main/java/com/beotkkot/qtudy/domain/posts/Posts.java b/src/main/java/com/beotkkot/qtudy/domain/posts/Posts.java
index 733d969..722de89 100644
--- a/src/main/java/com/beotkkot/qtudy/domain/posts/Posts.java
+++ b/src/main/java/com/beotkkot/qtudy/domain/posts/Posts.java
@@ -10,7 +10,6 @@
 
 
 @Builder
-@Setter
 @Getter
 @NoArgsConstructor
 @AllArgsConstructor
@@ -44,7 +43,7 @@ public class Posts {
 
     private String updatedAt;
 
-    public void patchPost(PostsRequestDto dto) {
+    public void patchPost(PostsRequestDto dto, String summary) {
         Date now = Date.from(Instant.now());
         SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
         String updateDatetime = simpleDateFormat.format(now);
@@ -55,6 +54,7 @@ public void patchPost(PostsRequestDto dto) {
         this.updatedAt = updateDatetime;
         this.tag = tagString;
         this.categoryId = dto.getCategoryId();
+        this.summary = summary;
     }
 
     public void increaseScrapCount() {
@@ -64,4 +64,8 @@ public void increaseScrapCount() {
     public void decreaseScrapCount() {
         this.scrapCount--;
     }
+
+    public void updateCommentCount(int commentCount) {
+        this.commentCount = commentCount;
+    }
 }
diff --git a/src/main/java/com/beotkkot/qtudy/domain/primaryKey/InterestsPK.java b/src/main/java/com/beotkkot/qtudy/domain/primaryKey/InterestsPK.java
index ee11932..5052fb5 100644
--- a/src/main/java/com/beotkkot/qtudy/domain/primaryKey/InterestsPK.java
+++ b/src/main/java/com/beotkkot/qtudy/domain/primaryKey/InterestsPK.java
@@ -4,12 +4,10 @@
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
-import lombok.Setter;
 
 import java.io.Serializable;
 
 @Getter
-@Setter
 @NoArgsConstructor
 @AllArgsConstructor
 public class InterestsPK implements Serializable {
diff --git a/src/main/java/com/beotkkot/qtudy/domain/primaryKey/ScrapPk.java b/src/main/java/com/beotkkot/qtudy/domain/primaryKey/ScrapPk.java
index 291643b..f26928b 100644
--- a/src/main/java/com/beotkkot/qtudy/domain/primaryKey/ScrapPk.java
+++ b/src/main/java/com/beotkkot/qtudy/domain/primaryKey/ScrapPk.java
@@ -4,12 +4,10 @@
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
-import lombok.Setter;
 
 import java.io.Serializable;
 
 @Getter
-@Setter
 @NoArgsConstructor
 @AllArgsConstructor
 public class ScrapPk implements Serializable {
diff --git a/src/main/java/com/beotkkot/qtudy/domain/quiz/Quiz.java b/src/main/java/com/beotkkot/qtudy/domain/quiz/Quiz.java
index 6ab71cf..193fdb5 100644
--- a/src/main/java/com/beotkkot/qtudy/domain/quiz/Quiz.java
+++ b/src/main/java/com/beotkkot/qtudy/domain/quiz/Quiz.java
@@ -5,7 +5,6 @@
 
 @Builder
 @Getter
-@Setter
 @NoArgsConstructor
 @AllArgsConstructor
 @Entity
diff --git a/src/main/java/com/beotkkot/qtudy/domain/quiz/Review.java b/src/main/java/com/beotkkot/qtudy/domain/quiz/Review.java
index c766966..5a1f9c9 100644
--- a/src/main/java/com/beotkkot/qtudy/domain/quiz/Review.java
+++ b/src/main/java/com/beotkkot/qtudy/domain/quiz/Review.java
@@ -5,7 +5,6 @@
 
 @Builder
 @Getter
-@Setter
 @NoArgsConstructor
 @AllArgsConstructor
 @Entity
diff --git a/src/main/java/com/beotkkot/qtudy/domain/tags/Tags.java b/src/main/java/com/beotkkot/qtudy/domain/tags/Tags.java
index 3529b2b..7d942c0 100644
--- a/src/main/java/com/beotkkot/qtudy/domain/tags/Tags.java
+++ b/src/main/java/com/beotkkot/qtudy/domain/tags/Tags.java
@@ -1,13 +1,10 @@
 package com.beotkkot.qtudy.domain.tags;
 
 import jakarta.persistence.*;
-import lombok.AllArgsConstructor;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import lombok.Setter;
+import lombok.*;
 
-@Setter
 @Getter
+@Builder
 @NoArgsConstructor
 @AllArgsConstructor
 @Entity
diff --git a/src/main/java/com/beotkkot/qtudy/domain/user/Users.java b/src/main/java/com/beotkkot/qtudy/domain/user/Users.java
index 5b6276e..1d013a0 100644
--- a/src/main/java/com/beotkkot/qtudy/domain/user/Users.java
+++ b/src/main/java/com/beotkkot/qtudy/domain/user/Users.java
@@ -1,11 +1,16 @@
 package com.beotkkot.qtudy.domain.user;
 
 import jakarta.persistence.*;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
 import lombok.Getter;
-import lombok.Setter;
+import lombok.NoArgsConstructor;
 
 @Entity
-@Getter @Setter
+@Getter
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
 public class Users {
     @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "user_id")
@@ -18,4 +23,8 @@ public class Users {
     private String profileImageUrl;
 
     private boolean first;
+
+    public void updateFirst() {
+        this.first = false;
+    }
 }