diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterComment.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterComment.kt
index 62f1cb9..f2d9f87 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterComment.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterComment.kt
@@ -16,6 +16,7 @@ import javax.persistence.Table
 data class CharacterComment(
     @Column(columnDefinition = "TEXT", nullable = false)
     var comment: String,
+    var languageCode: String?,
     var isActive: Boolean = true
 ) : BaseEntity() {
     @ManyToOne(fetch = FetchType.LAZY)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentController.kt
index 8036169..e9fcc64 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentController.kt
@@ -47,7 +47,7 @@ class CharacterCommentController(
         if (member.auth == null) throw SodaException("본인인증을 하셔야 합니다.")
         if (request.comment.isBlank()) throw SodaException("댓글 내용을 입력해주세요.")
 
-        val id = service.addReply(characterId, commentId, member, request.comment)
+        val id = service.addReply(characterId, commentId, member, request.comment, request.languageCode)
         ApiResponse.ok(id)
     }
 
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentDto.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentDto.kt
index d35f2cb..2c898e6 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentDto.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentDto.kt
@@ -2,7 +2,8 @@ package kr.co.vividnext.sodalive.chat.character.comment
 
 // Request DTOs
 data class CreateCharacterCommentRequest(
-    val comment: String
+    val comment: String,
+    val languageCode: String? = null
 )
 
 // Response DTOs
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentService.kt
index 25d186a..012aa7a 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/comment/CharacterCommentService.kt
@@ -57,12 +57,12 @@ class CharacterCommentService(
     }
 
     @Transactional
-    fun addComment(characterId: Long, member: Member, text: String): Long {
+    fun addComment(characterId: Long, member: Member, text: String, languageCode: String? = null): Long {
         val character = chatCharacterRepository.findById(characterId).orElseThrow { SodaException("캐릭터를 찾을 수 없습니다.") }
         if (!character.isActive) throw SodaException("비활성화된 캐릭터입니다.")
         if (text.isBlank()) throw SodaException("댓글 내용을 입력해주세요.")
 
-        val entity = CharacterComment(comment = text)
+        val entity = CharacterComment(comment = text, languageCode = languageCode)
         entity.chatCharacter = character
         entity.member = member
         commentRepository.save(entity)
@@ -70,7 +70,13 @@ class CharacterCommentService(
     }
 
     @Transactional
-    fun addReply(characterId: Long, parentCommentId: Long, member: Member, text: String): Long {
+    fun addReply(
+        characterId: Long,
+        parentCommentId: Long,
+        member: Member,
+        text: String,
+        languageCode: String? = null
+    ): Long {
         val character = chatCharacterRepository.findById(characterId).orElseThrow { SodaException("캐릭터를 찾을 수 없습니다.") }
         if (!character.isActive) throw SodaException("비활성화된 캐릭터입니다.")
         val parent = commentRepository.findById(parentCommentId).orElseThrow { SodaException("댓글을 찾을 수 없습니다.") }
@@ -78,7 +84,7 @@ class CharacterCommentService(
         if (!parent.isActive) throw SodaException("비활성화된 댓글입니다.")
         if (text.isBlank()) throw SodaException("댓글 내용을 입력해주세요.")
 
-        val entity = CharacterComment(comment = text)
+        val entity = CharacterComment(comment = text, languageCode = languageCode)
         entity.chatCharacter = character
         entity.member = member
         entity.parent = parent