diff --git a/src/main/java/com/neighbors/tohero/application/letter/dto/GetLetterDetailResponse.java b/src/main/java/com/neighbors/tohero/application/letter/dto/GetLetterDetailResponse.java
index cfe3197..581ba9a 100644
--- a/src/main/java/com/neighbors/tohero/application/letter/dto/GetLetterDetailResponse.java
+++ b/src/main/java/com/neighbors/tohero/application/letter/dto/GetLetterDetailResponse.java
@@ -9,10 +9,12 @@ public record LetterInfo(
         long letterId,
         String content,
         String from,
-        String to
+        String to,
+        boolean isOpened,
+        boolean isPublic
     ){}
 
     public static GetLetterDetailResponse from(Letter letter) {
-        return new GetLetterDetailResponse(new LetterInfo(letter.getLetterId(), letter.getLetterContent(), letter.getWriter(), letter.getTargetName()));
+        return new GetLetterDetailResponse(new LetterInfo(letter.getLetterId(), letter.getLetterContent(), letter.getWriter(), letter.getTargetName(), letter.isOpened(), letter.isPublic()));
     }
 }
diff --git a/src/main/java/com/neighbors/tohero/domain/domain/mainPage/service/GetLetter.java b/src/main/java/com/neighbors/tohero/domain/domain/mainPage/service/GetLetter.java
index 9f6b6a6..9d4cf32 100644
--- a/src/main/java/com/neighbors/tohero/domain/domain/mainPage/service/GetLetter.java
+++ b/src/main/java/com/neighbors/tohero/domain/domain/mainPage/service/GetLetter.java
@@ -23,7 +23,7 @@ public List<Letter> getPageableLetter(Pageable pageable){
     }
 
     public Letter getLetterById(long letterId){
-        return letterRepository.getLetter(repo -> repo.findByIdAndPublic(letterId));
+        return letterRepository.getLetter(repo -> repo.findById(letterId));
     }
 
     public List<Letter> getMyLetters(long userId){
diff --git a/src/main/java/com/neighbors/tohero/infrastructure/repository/LetterEntityRepository.java b/src/main/java/com/neighbors/tohero/infrastructure/repository/LetterEntityRepository.java
index b77d3b5..d8b66d4 100644
--- a/src/main/java/com/neighbors/tohero/infrastructure/repository/LetterEntityRepository.java
+++ b/src/main/java/com/neighbors/tohero/infrastructure/repository/LetterEntityRepository.java
@@ -24,8 +24,8 @@ public interface LetterEntityRepository extends JpaRepository<LetterEntity, Long
     @Query("SELECT le FROM LetterEntity le WHERE le.user.userId = :userId")
     Optional<List<LetterEntity>> findAllByUserId(@Param("userId") Long userId);
 
-    @Query("SELECT le FROM LetterEntity le WHERE le.letterId = :letterId AND le.isPublic = true")
-    Optional<LetterEntity> findByIdAndPublic(@Param("letterId") long letterId);
+    @Query("SELECT le FROM LetterEntity le WHERE le.letterId = :letterId")
+    Optional<LetterEntity> findById(@Param("letterId") long letterId);
 
     @Modifying
     @Query("UPDATE LetterEntity le SET le.isPublic = :isPublic WHERE le.user.userId = :userId AND le.letterId = :letterId")