diff --git a/src/main/java/com/fc/shimpyo_be/domain/cart/controller/CartRestController.java b/src/main/java/com/fc/shimpyo_be/domain/cart/controller/CartRestController.java
index 7e9f66da..23be1ce3 100644
--- a/src/main/java/com/fc/shimpyo_be/domain/cart/controller/CartRestController.java
+++ b/src/main/java/com/fc/shimpyo_be/domain/cart/controller/CartRestController.java
@@ -13,6 +13,7 @@
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -25,6 +26,7 @@
 @RestController
 @RequestMapping("/api/carts")
 @RequiredArgsConstructor
+@Transactional(readOnly = true)
 public class CartRestController {
 
     private final CartService cartService;
@@ -36,10 +38,9 @@ public ResponseEntity<ResponseDto<List<CartResponse>>> getCarts() {
     }
 
     @PostMapping
+    @Transactional
     public ResponseEntity<ResponseDto<CartResponse>> addCart(
         @Valid @RequestBody CartCreateRequest cartCreateRequest) {
-        log.debug("startDate: {}, endDate: {}, price: {}", cartCreateRequest.startDate(),
-            cartCreateRequest.endDate(), cartCreateRequest.price());
         if (DateTimeUtil.isNotValidDate(DateTimeUtil.toLocalDate(cartCreateRequest.startDate()),
             DateTimeUtil.toLocalDate(cartCreateRequest.endDate()))) {
             throw new InvalidDateException();
@@ -50,9 +51,9 @@ public ResponseEntity<ResponseDto<CartResponse>> addCart(
     }
 
     @DeleteMapping("/{cartId}")
+    @Transactional
     public ResponseEntity<ResponseDto<CartDeleteResponse>> deleteCart(
         @PathVariable("cartId") Long cartId) {
-        log.debug("cartId: {}", cartId);
         return ResponseEntity.ok().body(
             ResponseDto.res(HttpStatus.OK, cartService.deleteCart(cartId), "장바구니를 성공적으로 삭제했습니다."));
     }
diff --git a/src/main/java/com/fc/shimpyo_be/domain/cart/dto/response/CartResponse.java b/src/main/java/com/fc/shimpyo_be/domain/cart/dto/response/CartResponse.java
index 3a34a7aa..609df20b 100644
--- a/src/main/java/com/fc/shimpyo_be/domain/cart/dto/response/CartResponse.java
+++ b/src/main/java/com/fc/shimpyo_be/domain/cart/dto/response/CartResponse.java
@@ -23,7 +23,7 @@ public class CartResponse {
     private final String checkOut;
 
     @Builder
-    public CartResponse(Long cartId, Long productId, String productName, String image,
+    private CartResponse(Long cartId, Long productId, String productName, String image,
         Long roomCode,
         String roomName, Long price, String description, Long standard, Long capacity,
         String startDate, String endDate, String checkIn, String checkOut) {
diff --git a/src/main/java/com/fc/shimpyo_be/domain/product/controller/ProductRestController.java b/src/main/java/com/fc/shimpyo_be/domain/product/controller/ProductRestController.java
index 1dc9b882..ddf866a2 100644
--- a/src/main/java/com/fc/shimpyo_be/domain/product/controller/ProductRestController.java
+++ b/src/main/java/com/fc/shimpyo_be/domain/product/controller/ProductRestController.java
@@ -19,6 +19,7 @@
 import org.springframework.data.web.PageableDefault;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.transaction.annotation.Transactional;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -31,6 +32,7 @@
 @RequestMapping("/api/products")
 @RequiredArgsConstructor
 @Validated
+@Transactional(readOnly = true)
 public class ProductRestController {
 
     private final ProductService productService;
@@ -43,7 +45,6 @@ public ResponseEntity<ResponseDto<PaginatedProductResponse>> getProducts(
         @RequestParam(required = false, defaultValue = "") String category,
         @RequestParam(required = false, defaultValue = "0") Long capacity,
         @PageableConstraint(Product.class) @PageableDefault(size = 10, page = 0) Pageable pageable) {
-        log.debug("productName: {}, address: {}, category: {}", productName, address, category);
         SearchKeywordRequest searchKeywordRequest = SearchKeywordRequest.builder()
             .productName(productName).address(address).category(category).capacity(capacity)
             .build();
@@ -57,7 +58,6 @@ public ResponseEntity<ResponseDto<ProductDetailsResponse>> getProductDetails(
         @PathVariable("productId") Long productId,
         @RequestParam @Pattern(regexp = DateTimeUtil.LOCAL_DATE_REGEX_PATTERN, message = "잘못된 시간 형식입니다. (올바른 예시: 2023-10-25)") String startDate,
         @RequestParam @Pattern(regexp = DateTimeUtil.LOCAL_DATE_REGEX_PATTERN, message = "잘못된 시간 형식입니다. (올바른 예시: 2023-10-25)") String endDate) {
-        log.debug("productId: {}, startDate: {}, endDate: {}", productId, startDate, endDate);
         if (DateTimeUtil.isNotValidDate(DateTimeUtil.toLocalDate(startDate),
             DateTimeUtil.toLocalDate(endDate))) {
             throw new InvalidDateException();
@@ -72,7 +72,6 @@ public ResponseEntity<ResponseDto<Void>> isAvailableForReservation(
         @PathVariable("roomId") Long roomId,
         @RequestParam @Pattern(regexp = DateTimeUtil.LOCAL_DATE_REGEX_PATTERN, message = "잘못된 시간 형식입니다. (올바른 예시: 2023-10-25)") String startDate,
         @RequestParam @Pattern(regexp = DateTimeUtil.LOCAL_DATE_REGEX_PATTERN, message = "잘못된 시간 형식입니다. (올바른 예시: 2023-10-25)") String endDate) {
-        log.debug("roomId: {}, startDate: {}, endDate: {}", roomId, startDate, endDate);
         if (DateTimeUtil.isNotValidDate(DateTimeUtil.toLocalDate(startDate),
             DateTimeUtil.toLocalDate(endDate))) {
             throw new InvalidDateException();
diff --git a/src/main/java/com/fc/shimpyo_be/domain/room/dto/response/RoomResponse.java b/src/main/java/com/fc/shimpyo_be/domain/room/dto/response/RoomResponse.java
index 00b3ad47..7a0a51f1 100644
--- a/src/main/java/com/fc/shimpyo_be/domain/room/dto/response/RoomResponse.java
+++ b/src/main/java/com/fc/shimpyo_be/domain/room/dto/response/RoomResponse.java
@@ -22,7 +22,7 @@ public class RoomResponse {
     private Long remaining;
 
     @Builder
-    public RoomResponse(Long roomCode, String roomName, Long price, String description,
+    private RoomResponse(Long roomCode, String roomName, Long price, String description,
         Long standard,
         Long capacity, String checkIn, String checkOut, Long remaining,
         RoomOptionResponse roomOptionResponse,