diff --git a/back/src/main/java/com/back/domain/comment/entity/Comment.java b/back/src/main/java/com/back/domain/comment/entity/Comment.java
index 99cc768..6cbd03e 100644
--- a/back/src/main/java/com/back/domain/comment/entity/Comment.java
+++ b/back/src/main/java/com/back/domain/comment/entity/Comment.java
@@ -1,5 +1,6 @@
 package com.back.domain.comment.entity;
 
+import com.back.domain.like.entity.CommentLike;
 import com.back.domain.post.entity.Post;
 import com.back.domain.user.entity.User;
 import com.back.global.baseentity.BaseEntity;
@@ -47,6 +48,10 @@ public class Comment extends BaseEntity {
 
     private int likeCount;
 
+    @OneToMany(mappedBy = "comment", cascade = CascadeType.ALL, orphanRemoval = true)
+    @Builder.Default
+    private List<CommentLike> commentLikes = new ArrayList<>();
+
     @LastModifiedDate
     private LocalDateTime updatedAt;
 
diff --git a/back/src/main/java/com/back/domain/post/entity/Post.java b/back/src/main/java/com/back/domain/post/entity/Post.java
index f2168ac..5ae7fd6 100644
--- a/back/src/main/java/com/back/domain/post/entity/Post.java
+++ b/back/src/main/java/com/back/domain/post/entity/Post.java
@@ -1,6 +1,7 @@
 package com.back.domain.post.entity;
 
 import com.back.domain.comment.entity.Comment;
+import com.back.domain.like.entity.PostLike;
 import com.back.domain.poll.entity.PollVote;
 import com.back.domain.post.enums.PostCategory;
 import com.back.domain.scenario.entity.Scenario;
@@ -72,6 +73,10 @@ public class Post extends BaseEntity {
     @Builder.Default
     private List<PollVote> pollVotes = new ArrayList<>();
 
+    @OneToMany(mappedBy = "post", cascade = CascadeType.ALL, orphanRemoval = true)
+    @Builder.Default
+    private List<PostLike> postLikes = new ArrayList<>();
+
     @OneToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "scenario_id")
     private Scenario scenario;