diff --git a/src/modules/item-related/item/domain/usecases/managers/index-item.manager.ts b/src/modules/item-related/item/domain/usecases/managers/index-item.manager.ts
index 1e5101a..f32ac74 100644
--- a/src/modules/item-related/item/domain/usecases/managers/index-item.manager.ts
+++ b/src/modules/item-related/item/domain/usecases/managers/index-item.manager.ts
@@ -121,6 +121,16 @@ export class IndexItemManager extends BaseIndexManager<ItemEntity> {
       queryBuilder.andWhere(`${this.tableName}.show_to_booking = true`);
     }
 
+    if (this.filterParam.without_time_group != null) {
+      const withoutTimeGroup = this.filterParam.without_time_group
+        ? 'Is Null'
+        : 'Is Not Null';
+
+      queryBuilder.andWhere(
+        `${this.tableName}.time_group_id ${withoutTimeGroup}`,
+      );
+    }
+
     return queryBuilder;
   }
 }