diff --git a/app/api/study_sessions.py b/app/api/study_sessions.py
index 4ac9eaa..fadb393 100644
--- a/app/api/study_sessions.py
+++ b/app/api/study_sessions.py
@@ -306,9 +306,8 @@ async def create_study_session(
     session.add(sess)
     await session.flush()
     await session.commit()
-
-    # assets 빈 리스트로 초기화된 상태로 응답
-    sess.assets = []
+    # 새 세션은 assets 가 비어있지만 async session lazy load 우회를 위해 명시 refresh
+    await session.refresh(sess, attribute_names=["assets"])
     return _to_session_response(sess)