diff --git a/plu-api/src/main/kotlin/com/th/plu/api/service/answer/AnswerService.kt b/plu-api/src/main/kotlin/com/th/plu/api/service/answer/AnswerService.kt
index 8342712..8bcb03c 100644
--- a/plu-api/src/main/kotlin/com/th/plu/api/service/answer/AnswerService.kt
+++ b/plu-api/src/main/kotlin/com/th/plu/api/service/answer/AnswerService.kt
@@ -77,6 +77,7 @@ class AnswerService(
         return EveryAnswerInfoResponse.of(todayQuestion, answerCount)
     }
 
+    @Transactional(readOnly = true)
     fun findAllAnswersLikeTopN(getCount: Long): EveryAnswerRetrieveResponses {
         val todayQuestion = questionExplorer.findTodayQuestion()
         val answers = answerRepository.findPublicAnswersLikeTopN(todayQuestion.id, getCount)
@@ -92,16 +93,7 @@ class AnswerService(
 
         return try {
             answerRegister.registerAnswer(memberEntity, questionEntity, answerWriting.body, answerWriting.open).let {
-                WritingAnswerResult(
-                    questionId = questionEntity.id,
-                    questionTitle = questionEntity.title,
-                    questionContent = questionEntity.content,
-                    questionExposedAt = questionEntity.exposedAt,
-                    questionElementType = questionEntity.elementType,
-                    questionAnswered = true,
-                    answerId = it.id,
-                    answerBody = it.content,
-                    reactionLikeCount = 0 // 최초 생성시는 0
+                WritingAnswerResult(questionId = questionEntity.id, questionTitle = questionEntity.title, questionContent = questionEntity.content, questionExposedAt = questionEntity.exposedAt, questionElementType = questionEntity.elementType, questionAnswered = true, answerId = it.id, answerBody = it.content, reactionLikeCount = 0 // 최초 생성시는 0
                 )
             }
         } catch (e: DataIntegrityViolationException) {
diff --git a/plu-domain/src/main/kotlin/com/th/plu/domain/domain/question/explorer/QuestionExplorer.kt b/plu-domain/src/main/kotlin/com/th/plu/domain/domain/question/explorer/QuestionExplorer.kt
index 94c18af..f0e59dc 100644
--- a/plu-domain/src/main/kotlin/com/th/plu/domain/domain/question/explorer/QuestionExplorer.kt
+++ b/plu-domain/src/main/kotlin/com/th/plu/domain/domain/question/explorer/QuestionExplorer.kt
@@ -14,8 +14,9 @@ class QuestionExplorer(
     private val questionRepository: QuestionRepository,
 ) {
     fun findQuestion(id: Long): Question =
-        questionRepository.findById(id).orElse(null)
-            ?: throw NotFoundException(ErrorCode.NOT_FOUND_QUESTION_EXCEPTION, "존재하지 않는 질문 $id 입니다")
+        questionRepository.findById(id).orElseThrow {
+            NotFoundException(ErrorCode.NOT_FOUND_QUESTION_EXCEPTION, "존재 하지 않는 질문 $id 입니다")
+        }
 
     fun findQuestionByDateTime(dateTime: LocalDateTime): Question {
         // 입력된 dateTime이 밤 10시 이후인지 확인