diff --git a/modules/inventory_return/controller/inventory_return_controller.go b/modules/inventory_return/controller/inventory_return_controller.go
index a024263..e7bd7be 100644
--- a/modules/inventory_return/controller/inventory_return_controller.go
+++ b/modules/inventory_return/controller/inventory_return_controller.go
@@ -17,6 +17,7 @@ type InventoryReturnController interface {
 	Delete(ctx *gin.Context)
 	GetById(ctx *gin.Context)
 	GetAll(ctx *gin.Context)
+	GetLinesByReturnId(ctx *gin.Context)
 	CreateLine(ctx *gin.Context)
 	UpdateLine(ctx *gin.Context)
 	DeleteLine(ctx *gin.Context)
@@ -26,6 +27,18 @@ type inventoryReturnController struct {
 	returnService service.InventoryReturnService
 }
 
+func (c *inventoryReturnController) GetLinesByReturnId(ctx *gin.Context) {
+	returnId := ctx.Param("id")
+	lines, err := c.returnService.GetLinesByReturnId(ctx, returnId)
+	if err != nil {
+		res := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_INVENTORY_RETURN_LINE, err.Error(), nil)
+		ctx.JSON(http.StatusInternalServerError, res)
+		return
+	}
+	res := utils.BuildResponseSuccess(dto.MESSAGE_SUCCESS_GET_INVENTORY_RETURN_LINE, lines)
+	ctx.JSON(http.StatusOK, res)
+}
+
 // DeleteLine implements InventoryReturnController.
 func (c *inventoryReturnController) DeleteLine(ctx *gin.Context) {
 	id := ctx.Param("id")
diff --git a/modules/inventory_return/dto/inventory_return_dto.go b/modules/inventory_return/dto/inventory_return_dto.go
index 2cd4553..08d1cde 100644
--- a/modules/inventory_return/dto/inventory_return_dto.go
+++ b/modules/inventory_return/dto/inventory_return_dto.go
@@ -23,6 +23,8 @@ const (
 	MESSAGE_SUCCESS_DELETE_INVENTORY_RETURN      = "success delete inventory return"
 	MESSAGE_SUCCESS_DELETE_INVENTORY_RETURN_LINE = "success delete inventory return line"
 	MESSAGE_FAILED_GET_DATA_FROM_BODY            = "failed get data from body"
+	MESSAGE_FAILED_GET_INVENTORY_RETURN_LINE     = "failed get inventory return line"
+	MESSAGE_SUCCESS_GET_INVENTORY_RETURN_LINE    = "success get inventory return line"
 )
 
 type InventoryReturnCreateRequest struct {
@@ -61,14 +63,13 @@ type InventoryReturnLineUpdateRequest struct {
 }
 
 type InventoryReturnResponse struct {
-	ID             string                        `json:"id"`
-	DocumentNumber string                        `json:"document_number"`
-	DocumentDate   string                        `json:"document_date"`
-	Notes          string                        `json:"notes"`
-	Status         string                        `json:"status"`
-	InvIssue       InvReturnInvIssue             `json:"inv_issue"`
-	Client         pkgdto.IdNameResponse         `json:"client"`
-	ReturnLines    []InventoryReturnLineResponse `json:"return_lines,omitempty"`
+	ID             string                `json:"id"`
+	DocumentNumber string                `json:"document_number"`
+	DocumentDate   string                `json:"document_date"`
+	Notes          string                `json:"notes"`
+	Status         string                `json:"status"`
+	InvIssue       InvReturnInvIssue     `json:"inv_issue"`
+	Client         pkgdto.IdNameResponse `json:"client"`
 }
 
 type InvReturnInvIssue struct {
@@ -97,10 +98,10 @@ type InvReturnProduct struct {
 
 // Helper untuk mapping entity ke response
 func ToInventoryReturnResponse(entity entities.TInventoryReturnEntity) InventoryReturnResponse {
-	lines := make([]InventoryReturnLineResponse, 0, len(entity.ReturnLines))
-	for _, line := range entity.ReturnLines {
-		lines = append(lines, ToInventoryReturnLineResponse(line))
-	}
+	// lines := make([]InventoryReturnLineResponse, 0, len(entity.ReturnLines))
+	// for _, line := range entity.ReturnLines {
+	// 	lines = append(lines, ToInventoryReturnLineResponse(line))
+	// }
 
 	client := pkgdto.IdNameResponse{}
 	if entity.Client.ID != uuid.Nil {
@@ -135,7 +136,6 @@ func ToInventoryReturnResponse(entity entities.TInventoryReturnEntity) Inventory
 		Status:         entity.Status,
 		InvIssue:       invIssue,
 		Client:         client,
-		ReturnLines:    lines,
 	}
 }
 
@@ -175,3 +175,11 @@ func ToInventoryReturnLineResponse(line entities.TInventoryReturnLineEntity) Inv
 		Client:         client,
 	}
 }
+
+func ToInventoryReturnLineResponses(linesEntity []entities.TInventoryReturnLineEntity) []InventoryReturnLineResponse {
+	lines := make([]InventoryReturnLineResponse, 0, len(linesEntity))
+	for _, line := range linesEntity {
+		lines = append(lines, ToInventoryReturnLineResponse(line))
+	}
+	return lines
+}
diff --git a/modules/inventory_return/routes.go b/modules/inventory_return/routes.go
index b0ded10..a6ea16c 100644
--- a/modules/inventory_return/routes.go
+++ b/modules/inventory_return/routes.go
@@ -20,6 +20,7 @@ func RegisterRoutes(server *gin.Engine, injector *do.Injector) {
 		returnRoutes.PUT(":id", middlewares.Authenticate(jwtService), returnController.Update)
 		returnRoutes.DELETE(":id", middlewares.Authenticate(jwtService), returnController.Delete)
 		returnRoutes.GET("", middlewares.Authenticate(jwtService), returnController.GetAll)
+		returnRoutes.GET(":id/lines", middlewares.Authenticate(jwtService), returnController.GetLinesByReturnId)
 		returnRoutes.POST(":id/lines", middlewares.Authenticate(jwtService), returnController.CreateLine)
 		returnRoutes.PUT("lines/:id", middlewares.Authenticate(jwtService), returnController.UpdateLine)
 		returnRoutes.DELETE("lines/:id", middlewares.Authenticate(jwtService), returnController.DeleteLine)
diff --git a/modules/inventory_return/service/inventory_return_service.go b/modules/inventory_return/service/inventory_return_service.go
index f53150a..2d65bc8 100644
--- a/modules/inventory_return/service/inventory_return_service.go
+++ b/modules/inventory_return/service/inventory_return_service.go
@@ -19,6 +19,7 @@ type InventoryReturnService interface {
 	Create(ctx context.Context, req dtodomain.InventoryReturnCreateRequest) (dtodomain.InventoryReturnResponse, error)
 	GetById(ctx context.Context, id string) (dtodomain.InventoryReturnResponse, error)
 	GetAll(ctx context.Context, filter query.InventoryReturnFilter) ([]dtodomain.InventoryReturnResponse, int64, error)
+	GetLinesByReturnId(ctx context.Context, returnId string) ([]dtodomain.InventoryReturnLineResponse, error)
 	Update(ctx context.Context, req dtodomain.InventoryReturnUpdateRequest, id string) (dtodomain.InventoryReturnResponse, error)
 	Delete(ctx context.Context, id string) error
 	CreateLine(ctx context.Context, returnId string, req dtodomain.InventoryReturnLineCreateRequest) (dtodomain.InventoryReturnLineResponse, error)
@@ -34,6 +35,15 @@ type inventoryReturnService struct {
 	productRepo    productrepository.ProductRepository
 }
 
+// GetLinesByReturnId implements InventoryReturnService.
+func (s *inventoryReturnService) GetLinesByReturnId(ctx context.Context, returnId string) ([]dtodomain.InventoryReturnLineResponse, error) {
+	lines, err := s.returnLineRepo.GetAllByReturnId(ctx, returnId)
+	if err != nil {
+		return nil, err
+	}
+	return dtodomain.ToInventoryReturnLineResponses(lines), nil
+}
+
 // DeleteLine implements InventoryReturnService.
 func (s *inventoryReturnService) DeleteLine(ctx context.Context, lineId string) error {
 	return s.returnLineRepo.Delete(ctx, nil, lineId)