diff --git a/AWSCLIV2.pkg b/AWSCLIV2.pkg
deleted file mode 100644
index a7fe9463..00000000
Binary files a/AWSCLIV2.pkg and /dev/null differ
diff --git a/umbba-api/src/main/java/sopt/org/umbba/api/service/qna/QnAService.java b/umbba-api/src/main/java/sopt/org/umbba/api/service/qna/QnAService.java
index 17e6a5eb..db4092b0 100644
--- a/umbba-api/src/main/java/sopt/org/umbba/api/service/qna/QnAService.java
+++ b/umbba-api/src/main/java/sopt/org/umbba/api/service/qna/QnAService.java
@@ -114,8 +114,14 @@ public List<QnAListResponseDto> getQnaList(Long userId, Long sectionId) {
         Parentchild parentchild = getParentchildByUser(myUser);
         List<QnA> qnaList = getQnAListByParentchild(parentchild);
 
+        QnA todayQnA = getTodayQnAByParentchild(parentchild);
+        int doneIndex = parentchild.getCount() - 1;
+        if (todayQnA.isChildAnswer() && todayQnA.isParentAnswer()) {
+            doneIndex += 1;
+        }
+
         return qnaList.stream()
-                .limit(parentchild.getCount() - 1)  // index까지만 요소를 처리
+                .limit(doneIndex)  // 현재 답변 완료된 index까지 보이도록
                 .filter(qna -> Objects.equals(qna.getQuestion().getSection().getSectionId(), sectionId))
                 .map(qna -> {
                     return QnAListResponseDto.builder()
diff --git a/umbba-api/src/main/java/sopt/org/umbba/api/service/user/AuthService.java b/umbba-api/src/main/java/sopt/org/umbba/api/service/user/AuthService.java
index beb26084..f9cd682d 100644
--- a/umbba-api/src/main/java/sopt/org/umbba/api/service/user/AuthService.java
+++ b/umbba-api/src/main/java/sopt/org/umbba/api/service/user/AuthService.java
@@ -15,21 +15,27 @@
 import sopt.org.umbba.api.service.user.social.kakao.KakaoLoginService;
 import sopt.org.umbba.common.exception.ErrorType;
 import sopt.org.umbba.common.exception.model.CustomException;
+import sopt.org.umbba.domain.domain.parentchild.Parentchild;
+import sopt.org.umbba.domain.domain.parentchild.repository.ParentchildRepository;
+import sopt.org.umbba.domain.domain.qna.repository.QnARepository;
 import sopt.org.umbba.domain.domain.user.SocialPlatform;
 import sopt.org.umbba.domain.domain.user.User;
 import sopt.org.umbba.domain.domain.user.repository.UserRepository;
 
 import java.security.NoSuchAlgorithmException;
 import java.security.spec.InvalidKeySpecException;
+import java.util.List;
 
 @Slf4j
 @Service
 @RequiredArgsConstructor
 @Transactional(readOnly = true)
-public class AuthService { 
+public class AuthService {
 
     private final JwtProvider jwtProvider;
     private final UserRepository userRepository;
+    private final ParentchildRepository parentchildRepository;
+    private final QnARepository qnARepository;
 
     private final AppleLoginService appleLoginService;
     private final KakaoLoginService kakaoLoginService;
@@ -98,9 +104,21 @@ public void logout(Long userId) {
     public void signout(Long userId) {
         User user = getUserById(userId);
         user.updateRefreshToken(null);
-        jwtProvider.deleteRefreshToken(userId); // 일치하는 ID가 없는 경우에는 아무 동작도 수행하지 않음 (CrudRepository 기본 동작)
         user.updateFcmToken(null);
         user.deleteSocialInfo();
+        jwtProvider.deleteRefreshToken(userId); // 일치하는 ID가 없는 경우에는 아무 동작도 수행하지 않음 (CrudRepository 기본 동작)
+
+        Parentchild parentChild = user.getParentChild();
+        List<User> findUsers = userRepository.findUserByParentChild(parentChild);
+
+        boolean allUsersDeleted = findUsers.stream()
+                .allMatch(u -> u.getSocialPlatform().equals(SocialPlatform.WITHDRAW));
+        if (allUsersDeleted) {
+            log.info("삭제된 부모자식: {} X {}", findUsers.get(0).getUsername(), findUsers.get(1).getUsername());
+            parentChild.getQnaList().forEach(qna -> qnARepository.deleteById(qna.getId()));
+            parentchildRepository.deleteById(parentChild.getId());
+            findUsers.forEach(u -> userRepository.deleteById(u.getId()));
+        }
     }
 
     private User getUserById(Long userId) {
diff --git a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/Parentchild.java b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/Parentchild.java
index d435a3d7..96743556 100644
--- a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/Parentchild.java
+++ b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/Parentchild.java
@@ -2,6 +2,8 @@
 
 import lombok.*;
 import lombok.extern.slf4j.Slf4j;
+import org.hibernate.annotations.SQLDelete;
+import org.hibernate.annotations.Where;
 import sopt.org.umbba.common.exception.ErrorType;
 import sopt.org.umbba.common.exception.model.CustomException;
 import sopt.org.umbba.domain.domain.common.AuditingTimeEntity;
@@ -19,6 +21,8 @@
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @AllArgsConstructor(access = AccessLevel.PROTECTED)
 @Builder
+@SQLDelete(sql = "UPDATE parentchild SET deleted=true WHERE parentchild_id=?")
+@Where(clause = "deleted=false")
 public class Parentchild extends AuditingTimeEntity {
 
     @Id
@@ -81,6 +85,8 @@ public void changeParentOnboardingAnswerList(List<OnboardingAnswer> onboardingAn
     @Column(nullable = false)
     private LocalTime pushTime;  // default: 오후 11시(클라이언트)
 
+    private boolean deleted = Boolean.FALSE;
+
     public void initQnA() {
         qnaList = new ArrayList<>();
     }
diff --git a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/repository/ParentchildRepository.java b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/repository/ParentchildRepository.java
index f9efe00c..a244bd32 100644
--- a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/repository/ParentchildRepository.java
+++ b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/repository/ParentchildRepository.java
@@ -17,8 +17,8 @@ public interface ParentchildRepository extends Repository<Parentchild, Long> {
 
     List<Parentchild> findAll();
 
-
     // UPDATE
 
     // DELETE
+    void deleteById(Long id);
 }
diff --git a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/QnA.java b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/QnA.java
index e689f60b..ff6892b4 100644
--- a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/QnA.java
+++ b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/QnA.java
@@ -1,6 +1,8 @@
 package sopt.org.umbba.domain.domain.qna;
 
 import lombok.*;
+import org.hibernate.annotations.SQLDelete;
+import org.hibernate.annotations.Where;
 import sopt.org.umbba.domain.domain.common.AuditingTimeEntity;
 
 import javax.persistence.*;
@@ -10,6 +12,8 @@
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @AllArgsConstructor(access = AccessLevel.PROTECTED)
 @Builder
+@SQLDelete(sql = "UPDATE qna SET deleted=true WHERE qna_id=?")
+@Where(clause = "deleted=false")
 public class QnA extends AuditingTimeEntity {
 
     @Id
@@ -31,6 +35,7 @@ public class QnA extends AuditingTimeEntity {
     @Column(nullable = false)
     private boolean isChildAnswer;
 
+    private boolean deleted = Boolean.FALSE;
 
     public boolean isParentAnswer() {
         return isParentAnswer;
diff --git a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/repository/QnARepository.java b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/repository/QnARepository.java
index a90632b7..d10413b8 100644
--- a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/repository/QnARepository.java
+++ b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/repository/QnARepository.java
@@ -10,4 +10,6 @@ public interface QnARepository extends Repository<QnA, Long> {
     void save(QnA qnA);
 
     Optional<QnA> findQnAById(Long id);
+
+    void deleteById(Long id);
 }
diff --git a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/user/User.java b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/user/User.java
index 6af074f2..91db80bf 100644
--- a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/user/User.java
+++ b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/user/User.java
@@ -2,6 +2,8 @@
 
 import lombok.*;
 import lombok.extern.slf4j.Slf4j;
+import org.hibernate.annotations.SQLDelete;
+import org.hibernate.annotations.Where;
 import sopt.org.umbba.domain.domain.common.AuditingTimeEntity;
 import sopt.org.umbba.domain.domain.parentchild.Parentchild;
 
@@ -15,6 +17,8 @@
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @AllArgsConstructor(access = AccessLevel.PROTECTED)
 @Builder
+@SQLDelete(sql = "UPDATE user SET deleted=true WHERE user_id=?")
+@Where(clause = "deleted=false")
 public class User extends AuditingTimeEntity {
 
     @Id
@@ -82,7 +86,8 @@ public void updateFcmToken(String fcmToken) {
     private String socialAccessToken;
 
 //    private String socialRefreshToken;
-    //
+
+    private boolean deleted = Boolean.FALSE;
 
     // 로그인 새롭게 할 때마다 해당 필드들 업데이트
     public void updateSocialInfo(String socialNickname, String socialProfileImage, String socialAccessToken/*, String socialRefreshToken*/) {
diff --git a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/user/repository/UserRepository.java b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/user/repository/UserRepository.java
index cb6ecdc7..5e717518 100644
--- a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/user/repository/UserRepository.java
+++ b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/user/repository/UserRepository.java
@@ -19,11 +19,12 @@ public interface UserRepository extends Repository<User, Long> {
     Optional<User> findBySocialPlatformAndSocialId(SocialPlatform socialPlatform, String socialId);
     Optional<User> findByFcmToken(String fcmToken);
 
+    // DELETE
+    void deleteById(Long id);
 
     /*@Query(value = "select user " +
             "from User user " +
             "where user.parentChild.id = :parentchild_id")*/
-    // TODO UserRepository 에서 or ParentchildRepository에서?
     List<User> findUserByParentChild(Parentchild parentchild);