diff --git a/src/test/kotlin/roomescape/supports/DummyInitializer.kt b/src/test/kotlin/roomescape/supports/DummyInitializer.kt
index 300af25b..4d20cc05 100644
--- a/src/test/kotlin/roomescape/supports/DummyInitializer.kt
+++ b/src/test/kotlin/roomescape/supports/DummyInitializer.kt
@@ -94,16 +94,26 @@ class DummyInitializer(
         scheduleRequest: ScheduleCreateRequest = ScheduleFixture.createRequest,
         reservationRequest: PendingReservationCreateRequest = ReservationFixture.pendingCreateRequest,
     ): ReservationEntity {
-        val themeId: Long = createTheme(
-            adminToken = adminToken,
-            request = themeRequest
-        ).id
+        val themeId: Long = if (scheduleRequest.themeId > 1) {
+            scheduleRequest.themeId
+        } else if (reservationRequest.scheduleId > 1) {
+            scheduleRepository.findByIdOrNull(reservationRequest.scheduleId)!!.themeId
+        } else {
+            createTheme(
+                adminToken = adminToken,
+                request = themeRequest
+            ).id
+        }
 
-        val scheduleId: Long = createSchedule(
-            adminToken = adminToken,
-            request = scheduleRequest.copy(themeId = themeId),
-            status = ScheduleStatus.HOLD
-        ).id
+        val scheduleId: Long = if (reservationRequest.scheduleId > 1) {
+            reservationRequest.scheduleId
+        } else {
+            createSchedule(
+                adminToken = adminToken,
+                request = scheduleRequest.copy(themeId = themeId),
+                status = ScheduleStatus.HOLD
+            ).id
+        }
 
         return createPendingReservation(
             reserverToken = reserverToken,
@@ -118,20 +128,30 @@ class DummyInitializer(
         scheduleRequest: ScheduleCreateRequest = ScheduleFixture.createRequest,
         reservationRequest: PendingReservationCreateRequest = ReservationFixture.pendingCreateRequest,
     ): ReservationEntity {
-        val themeId: Long = createTheme(
-            adminToken = adminToken,
-            request = themeRequest
-        ).id
+        val themeId: Long = if (scheduleRequest.themeId > 1) {
+            scheduleRequest.themeId
+        } else if (reservationRequest.scheduleId > 1) {
+            scheduleRepository.findByIdOrNull(reservationRequest.scheduleId)!!.themeId
+        } else {
+            createTheme(
+                adminToken = adminToken,
+                request = themeRequest
+            ).id
+        }
 
-        val schedule: ScheduleEntity = createSchedule(
-            adminToken = adminToken,
-            request = scheduleRequest.copy(themeId = themeId),
-            status = ScheduleStatus.HOLD
-        )
+        val scheduleId: Long = if (reservationRequest.scheduleId > 1) {
+            reservationRequest.scheduleId
+        } else {
+            createSchedule(
+                adminToken = adminToken,
+                request = scheduleRequest.copy(themeId = themeId),
+                status = ScheduleStatus.HOLD
+            ).id
+        }
 
         val reservation = createPendingReservation(
             reserverToken = reserverToken,
-            request = reservationRequest.copy(scheduleId = schedule.id)
+            request = reservationRequest.copy(scheduleId = scheduleId)
         )
 
         Given {