diff --git a/nowait-app-admin-api/src/main/java/com/nowait/applicationadmin/reservation/dto/EntryStatusResponseDto.java b/nowait-app-admin-api/src/main/java/com/nowait/applicationadmin/reservation/dto/EntryStatusResponseDto.java
index 1b6ad2cc..5608a458 100644
--- a/nowait-app-admin-api/src/main/java/com/nowait/applicationadmin/reservation/dto/EntryStatusResponseDto.java
+++ b/nowait-app-admin-api/src/main/java/com/nowait/applicationadmin/reservation/dto/EntryStatusResponseDto.java
@@ -31,21 +31,12 @@ public class EntryStatusResponseDto {
 	@Schema(description = "대기 등록 시각", example = "2025-07-22T16:00:00")
 	private LocalDateTime createdAt;
 
-	@Schema(description = "호출 시각", example = "2025-07-22T16:00:00")
-	private LocalDateTime calledAt; // 호출 시각
-
-	@Schema(description = "입장 완료 처리 시각", example = "2025-07-22T16:00:00")
-	private LocalDateTime confirmedAt; // 완료 시각
-
 	@Schema(description = "웨이팅 취소 시각", example = "2025-07-22T16:00:00")
-	private LocalDateTime cancelledAt; // 취소 시각
+	private LocalDateTime updatedAt; // 취소 시각
 
 	@Schema(description = "대기 상태", example = "CALLING")
 	private String status;
 
-	@Schema(description = "대기 순번/점수", example = "2.0")
-	private Double score;
-
 	@Schema(description = "호출 메시지", example = "호출 메시지")
 	private String message;
 
@@ -58,9 +49,7 @@ public static EntryStatusResponseDto fromEntity(Reservation r) {
 			.userName(r.getUser().getNickname())
 			.createdAt(r.getRequestedAt())
 			.status(r.getStatus().name())
-			.calledAt(r.getCalledAt())
-			.confirmedAt(r.getConfirmedAt())
-			.cancelledAt(r.getCancelledAt())
+			.updatedAt(r.getUpdatedAt())
 			.message(switch (r.getStatus()) {
 				case CALLING   -> r.getUser().getNickname() + "님을 호출하였습니다.";
 				case CONFIRMED -> r.getUser().getNickname() + "님의 입장이 완료되었습니다.";
diff --git a/nowait-app-admin-api/src/main/java/com/nowait/applicationadmin/reservation/service/ReservationService.java b/nowait-app-admin-api/src/main/java/com/nowait/applicationadmin/reservation/service/ReservationService.java
index bbb163da..3ed9fa8d 100644
--- a/nowait-app-admin-api/src/main/java/com/nowait/applicationadmin/reservation/service/ReservationService.java
+++ b/nowait-app-admin-api/src/main/java/com/nowait/applicationadmin/reservation/service/ReservationService.java
@@ -99,7 +99,7 @@ public CallGetResponseDto updateReservationStatus(Long reservationId, Reservatio
 			.equals(reservation.getStore().getStoreId())) {
 			throw new ReservationUpdateUnauthorizedException();
 		}
-		reservation.updateStatus(requestDto.getStatus());
+		reservation.markUpdated(LocalDateTime.now(), requestDto.getStatus());
 		return CallGetResponseDto.fromEntity(reservation);
 	}
 
@@ -231,14 +231,10 @@ public EntryStatusResponseDto processEntryStatus(Long storeId, String userId, Me
 		String currStatus = waitingRedisRepository.getWaitingStatus(storeId, userId);
 		Double score = redisTemplate.opsForZSet().score(queueKey, userId);
 		Integer partySize = waitingRedisRepository.getWaitingPartySize(storeId, userId);
-		Long calledMillis = waitingRedisRepository.getWaitingCalledAt(storeId, userId);
 
 		LocalDateTime requestedAt = score != null
 			? Instant.ofEpochMilli(score.longValue()).atZone(ZoneId.of("Asia/Seoul")).toLocalDateTime()
 			: LocalDateTime.now();
-		LocalDateTime calledAt = calledMillis != null
-			? Instant.ofEpochMilli(calledMillis).atZone(ZoneId.of("Asia/Seoul")).toLocalDateTime()
-			: null;
 		LocalDateTime now = LocalDateTime.now();
 
 		switch (newStatus) {
@@ -257,8 +253,7 @@ public EntryStatusResponseDto processEntryStatus(Long storeId, String userId, Me
 					.userName(userRepository.getReferenceById(Long.valueOf(userId)).getNickname())
 					.createdAt(requestedAt)
 					.status("CALLING")
-					.score(score)
-					.calledAt(now)
+					.updatedAt(now)
 					.message("호출되었습니다.")
 					.build();
 
@@ -276,15 +271,11 @@ public EntryStatusResponseDto processEntryStatus(Long storeId, String userId, Me
 						.user(userRepository.getReferenceById(Long.valueOf(userId)))
 						.partySize(partySize)
 						.requestedAt(requestedAt)
+						.updatedAt(LocalDateTime.now())
 						.build();
-					// 호출 시각 반영
-					r.markCalling(calledAt != null ? calledAt : now);
-					if (newStatus == ReservationStatus.CONFIRMED) {
-						r.markConfirmed(now);
-					} else {
-						r.markCancelled(now);
-					}
 
+					// 호출 시각 반영
+					r.markUpdated(LocalDateTime.now(), ReservationStatus.CONFIRMED);
 					Reservation saved = reservationRepository.save(r);
 					return EntryStatusResponseDto.fromEntity(saved);
 				} else {
@@ -301,8 +292,7 @@ public EntryStatusResponseDto processEntryStatus(Long storeId, String userId, Me
 							end
 						).orElseThrow(() -> new IllegalStateException("취소된 예약이 없습니다."));
 
-					existing.markConfirmed(now);
-					existing.updateStatus(ReservationStatus.CONFIRMED);
+					existing.markUpdated(LocalDateTime.now(), ReservationStatus.CONFIRMED);
 					Reservation saved = reservationRepository.save(existing);
 					return EntryStatusResponseDto.fromEntity(saved);
 				}
@@ -320,9 +310,10 @@ public EntryStatusResponseDto processEntryStatus(Long storeId, String userId, Me
 					.user(userRepository.getReferenceById(Long.valueOf(userId)))
 					.partySize(partySize)
 					.requestedAt(requestedAt)
+					.updatedAt(LocalDateTime.now())
 					.build();
-				r.markCalling(calledAt != null ? calledAt : now);
-				r.markCancelled(now);
+
+				r.markUpdated(LocalDateTime.now(), ReservationStatus.CANCELLED);
 				Reservation saved = reservationRepository.save(r);
 				return EntryStatusResponseDto.fromEntity(saved);
 
diff --git a/nowait-app-user-api/src/main/java/com/nowait/applicationuser/reservation/repository/WaitingUserRedisRepository.java b/nowait-app-user-api/src/main/java/com/nowait/applicationuser/reservation/repository/WaitingUserRedisRepository.java
index ccf73412..6ee8b7f4 100644
--- a/nowait-app-user-api/src/main/java/com/nowait/applicationuser/reservation/repository/WaitingUserRedisRepository.java
+++ b/nowait-app-user-api/src/main/java/com/nowait/applicationuser/reservation/repository/WaitingUserRedisRepository.java
@@ -96,10 +96,12 @@ public boolean removeWaiting(Long storeId, String userId) {
 		String partyKey = RedisKeyUtils.buildWaitingPartySizeKeyPrefix() + storeId;
 		String statusKey = RedisKeyUtils.buildWaitingStatusKeyPrefix() + storeId;
 		String reservationNumberKey = RedisKeyUtils.buildReservationNumberKey(storeId);
+
 		redisTemplate.opsForZSet().remove(key, userId);
 		redisTemplate.opsForHash().delete(partyKey, userId);
 		redisTemplate.opsForHash().delete(statusKey, userId);
 		redisTemplate.opsForHash().delete(reservationNumberKey, userId);
+
 		return true;
 	}
 
diff --git a/nowait-app-user-api/src/main/java/com/nowait/applicationuser/reservation/service/ReservationService.java b/nowait-app-user-api/src/main/java/com/nowait/applicationuser/reservation/service/ReservationService.java
index 04fc4eab..4b3c3edd 100644
--- a/nowait-app-user-api/src/main/java/com/nowait/applicationuser/reservation/service/ReservationService.java
+++ b/nowait-app-user-api/src/main/java/com/nowait/applicationuser/reservation/service/ReservationService.java
@@ -113,11 +113,33 @@ public boolean cancelWaiting(Long storeId, CustomOAuth2User customOAuth2User) {
 		if (storeId == null || userId.trim().isEmpty()) {
 			throw new IllegalArgumentException("Invalid storeId or userId");
 		}
+
+		String reservationNumber = waitingUserRedisRepository.getReservationId(storeId, userId);
+		if (reservationNumber == null) {
+			throw new IllegalArgumentException("Waiting not found");
+		}
+		Integer partySize = waitingUserRedisRepository.getPartySize(storeId, userId);
+		Long ts = waitingUserRedisRepository.getWaitingTimestamp(storeId, userId);
+
 		// 대기열에서 제거 및 결과 반환
 		boolean removed = waitingUserRedisRepository.removeWaiting(storeId, userId);
 		if (!removed) {
 			throw new IllegalArgumentException("Waiting not found");
 		}
+
+		Reservation reservation = Reservation.builder()
+			.reservationNumber(reservationNumber)
+			.partySize(partySize)
+			.status(ReservationStatus.CANCELLED)
+			.store(storeRepository.getReferenceById(storeId))
+			.user(userRepository.getReferenceById(Long.parseLong(userId)))
+			.updatedAt(LocalDateTime.now())
+			.requestedAt(ts != null ? LocalDateTime.ofInstant(Instant.ofEpochMilli(ts), ZoneId.of("Asia/Seoul"))
+				: LocalDateTime.now())
+			.build();
+
+		reservationRepository.save(reservation);
+
 		return removed;
 	}
 
diff --git a/nowait-domain/domain-core-rdb/src/main/java/com/nowait/domaincorerdb/reservation/entity/Reservation.java b/nowait-domain/domain-core-rdb/src/main/java/com/nowait/domaincorerdb/reservation/entity/Reservation.java
index 2f64fb34..da5ec2bf 100644
--- a/nowait-domain/domain-core-rdb/src/main/java/com/nowait/domaincorerdb/reservation/entity/Reservation.java
+++ b/nowait-domain/domain-core-rdb/src/main/java/com/nowait/domaincorerdb/reservation/entity/Reservation.java
@@ -49,14 +49,8 @@ public class Reservation {
 	@Column(name = "requested_at", nullable = false)
 	private LocalDateTime requestedAt;
 
-	@Column(name = "called_at", nullable = true)
-	private LocalDateTime calledAt;      // 호출 시각
-
-	@Column(name = "confirmed_at", nullable = true)
-	private LocalDateTime confirmedAt;   // 확정(입장 완료) 시각
-
-	@Column(name = "cancelled_at", nullable = true)
-	private LocalDateTime cancelledAt;   // 취소 시각
+	@Column(name = "updated_at", nullable = true)
+	private LocalDateTime updatedAt;
 
 	@Enumerated(EnumType.STRING)
 	@Column(nullable = false)
@@ -65,23 +59,8 @@ public class Reservation {
 	@Column(name = "party_size", nullable = false)
 	private Integer partySize;
 
-	public void updateStatus(ReservationStatus status) {
+	public void markUpdated(LocalDateTime ts, ReservationStatus status) {
 		this.status = status;
-	}
-
-	// 상태 전환 메서드
-	public void markCalling(LocalDateTime ts) {
-		this.status   = ReservationStatus.CALLING;
-		this.calledAt = ts;
-	}
-
-	public void markConfirmed(LocalDateTime ts) {
-		this.status      = ReservationStatus.CONFIRMED;
-		this.confirmedAt = ts;
-	}
-
-	public void markCancelled(LocalDateTime ts) {
-		this.status      = ReservationStatus.CANCELLED;
-		this.cancelledAt = ts;
+		this.updatedAt = ts;
 	}
 }