diff --git a/backend/src/main/java/com/example/booktree/user/service/UserService.java b/backend/src/main/java/com/example/booktree/user/service/UserService.java
index 093831ea..a614a7fe 100644
--- a/backend/src/main/java/com/example/booktree/user/service/UserService.java
+++ b/backend/src/main/java/com/example/booktree/user/service/UserService.java
@@ -4,6 +4,8 @@
 import com.example.booktree.category.entity.Category;
 import com.example.booktree.category.repository.CategoryRepository;
 import com.example.booktree.comment.repository.CommentRepository;
+import com.example.booktree.email.entity.EmailMessage;
+import com.example.booktree.email.service.EmailService;
 import com.example.booktree.exception.BusinessLogicException;
 import com.example.booktree.exception.ExceptionCode;
 import com.example.booktree.follow.repository.FollowRepository;
@@ -60,6 +62,7 @@ public class UserService {
 
 
     private final PasswordEncoder passwordEncoder;
+    private final EmailService emailService;
     private final TokenService tokenService;
     private final ImageService imageService;
     private static final String USER_IMAGE= DEFAULT_USER_IMAGE;
@@ -139,16 +142,19 @@ public User findUserByEmail(String email){
 
     }
 
-    //임시 비밀번호 발급 - 이메일로 비밀번호
-    public String findPasswordByEmail(String email){
-
+    public void findPasswordByEmail(String email){
+        EmailMessage emailMessage = EmailMessage.builder()
+                .to(email)
+                .subject("[BookTree] 임시 비밀번호 발급")
+                .build();
         User user = findUserByEmail(email);
         String randomPassword = CreateRandomNumber.randomNumber();
         user.setPassword(passwordEncoder.encode(randomPassword));
         userRepository.save(user);
-        return randomPassword;
-    }
 
+        emailService.sendMail(emailMessage, "password",randomPassword);
+
+    }
     //임시 비밀번호 발급 - 이메일, 핸드폰으로 비밀번호
     public String findPasswordByEmailAndPhone(UserPasswordRequestDto.FindPwByEmailAndPhone findPwByEmailAndPhone){
 
diff --git a/frontend/src/app/components/CommentsSection.tsx b/frontend/src/app/components/CommentsSection.tsx
index 4ee2b9e3..866ba1a1 100644
--- a/frontend/src/app/components/CommentsSection.tsx
+++ b/frontend/src/app/components/CommentsSection.tsx
@@ -334,10 +334,35 @@ export function CommentsSection({ postId }: { postId: number }) {
     }, [activeCommentId, activeReplyPopoverId])
 
     // ─── 프로필 이미지 불러오기 ────────────────────────────────────
+    // useEffect(() => {
+    //     if (!comments.length) return
+    //     const ids = Array.from(
+    //         new Set([...comments.map((c) => c.userId), ...comments.flatMap((c) => c.replies.map((r) => r.userId))]),
+    //     )
+    //     async function fetchUserImages() {
+    //         const map: Record<number, string> = {}
+    //         await Promise.all(
+    //             ids.map(async (id) => {
+    //                 try {
+    //                     const res = await fetch(`${API}/api/v1/users/get/profile/${id}`)
+    //                     if (!res.ok) return
+    //                     const { imageUrl } = await res.json()
+    //                     map[id] = imageUrl
+    //                 } catch {}
+    //             }),
+    //         )
+    //         setUserImages(map)
+    //     }
+    //     fetchUserImages()
+    // }, [comments])
+
     useEffect(() => {
-        if (!comments.length) return
+        if (!rawComments.length) return
         const ids = Array.from(
-            new Set([...comments.map((c) => c.userId), ...comments.flatMap((c) => c.replies.map((r) => r.userId))]),
+            new Set([
+                ...rawComments.map((c) => c.userId),
+                ...rawComments.flatMap((c) => c.replies.map((r) => r.userId)),
+            ]),
         )
         async function fetchUserImages() {
             const map: Record<number, string> = {}
@@ -354,7 +379,7 @@ export function CommentsSection({ postId }: { postId: number }) {
             setUserImages(map)
         }
         fetchUserImages()
-    }, [comments])
+    }, [rawComments])
 
     // ─── 렌더링 ────────────────────────────────────────────────────
     return (