diff --git a/oneco/src/main/java/com/oneco/backend/family/infrastructure/persistence/FamilyRelationJpaRepository.java b/oneco/src/main/java/com/oneco/backend/family/infrastructure/persistence/FamilyRelationJpaRepository.java
index 9a7d857..cecedf0 100644
--- a/oneco/src/main/java/com/oneco/backend/family/infrastructure/persistence/FamilyRelationJpaRepository.java
+++ b/oneco/src/main/java/com/oneco/backend/family/infrastructure/persistence/FamilyRelationJpaRepository.java
@@ -47,7 +47,7 @@ public interface FamilyRelationJpaRepository extends JpaRepository<FamilyRelatio
 		select new com.oneco.backend.StudyRecord.application.dto.result.MemberItem(m.id, m.name)
 			from FamilyRelation f
 			join Member m on m.id = f.childId.value
-			where f.parentId = :parentId
+			where f.parentId.value = :parentId
 			and f.status = 'CONNECTED'
 	""")
 	List<MemberItem> findAllConnectedChildrenByParentId(@Param("parentId") Long parentId);
diff --git a/oneco/src/main/java/com/oneco/backend/mission/application/service/MissionReadService.java b/oneco/src/main/java/com/oneco/backend/mission/application/service/MissionReadService.java
index bf27ba9..4de652d 100644
--- a/oneco/src/main/java/com/oneco/backend/mission/application/service/MissionReadService.java
+++ b/oneco/src/main/java/com/oneco/backend/mission/application/service/MissionReadService.java
@@ -131,10 +131,12 @@ public MissionDetailResponse getMissionDetailById(MemberId memberId, Long missio
 
 		String categoryTitle = categoryLookupPort.getCategoryTitle(mission.getCategoryId()).getValue();
 		String rewardTitle = mission.getReward() == null ? null : mission.getReward().getTitle();
-		String rewardMessage = mission.getReward() == null? null : mission.getReward().getMessage();
-		// 요청자 닉네임 조회
+		String rewardMessage = mission.getReward() == null ? null : mission.getReward().getMessage();
+		// 수신자, 요청자 닉네임 조회
 		Member recipient = memberJpaRepository.findById(mission.getRecipientId().getValue())
 			.orElseThrow(() -> BaseException.from(MissionErrorCode.MEMBER_NOT_FOUND));
+		Member requester = memberJpaRepository.findById(mission.getRequesterId().getValue())
+			.orElseThrow(() -> BaseException.from(MissionErrorCode.MEMBER_NOT_FOUND));
 		return MissionDetailResponse.of(
 			mission.getId(),
 			categoryTitle,
@@ -146,7 +148,8 @@ public MissionDetailResponse getMissionDetailById(MemberId memberId, Long missio
 			memberId.getValue(),
 			mission.getRecipientId().getValue(),
 			mission.getRequesterId().getValue(),
-			recipient.getNickname()
+			recipient.getNickname(),
+			requester.getNickname()
 		);
 	}
 }
diff --git a/oneco/src/main/java/com/oneco/backend/mission/presentation/response/MissionDetailResponse.java b/oneco/src/main/java/com/oneco/backend/mission/presentation/response/MissionDetailResponse.java
index c64a7e2..9121de6 100644
--- a/oneco/src/main/java/com/oneco/backend/mission/presentation/response/MissionDetailResponse.java
+++ b/oneco/src/main/java/com/oneco/backend/mission/presentation/response/MissionDetailResponse.java
@@ -13,7 +13,8 @@ public record MissionDetailResponse(
 	Long memberId,
 	Long recipientId,
 	Long requesterId,
-	String recipientNickname
+	String recipientNickname,
+	String requesterNickname
 ) {
 	public static MissionDetailResponse of(
 		Long missionId,
@@ -26,9 +27,10 @@ public static MissionDetailResponse of(
 		Long memberId,
 		Long recipientId,
 		Long requesterId,
-		String recipientNickname
+		String recipientNickname,
+		String requesterNickname
 	) {
-		return new MissionDetailResponse(missionId, categoryTitle, rewardTitle,rewardMessage, startDate, endDate, missionStatus,
-			memberId, recipientId, requesterId, recipientNickname);
+		return new MissionDetailResponse(missionId, categoryTitle, rewardTitle, rewardMessage, startDate, endDate, missionStatus,
+			memberId, recipientId, requesterId, recipientNickname, requesterNickname);
 	}
 }