diff --git a/.forge/iss-3588e28b9152-attempt-2-run-110ea1627109.md b/.forge/iss-3588e28b9152-attempt-2-run-110ea1627109.md
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--- a/.forge/iss-3588e28b9152-attempt-2-run-110ea1627109.md
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-# iss-3588e28b9152-attempt-2-run-110ea1627109
-
-Forge 이슈 작업 브랜치 `forge/iss-3588e28b9152-attempt-2-run-110ea1627109`.
diff --git a/docs/architecture/transaction-sequence.md b/docs/architecture/transaction-sequence.md
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----
-# Transaction Sequence
-
-## Sequence Diagram
-
-```mermaid
-sequenceDiagram
-    participant User
-    participant PaymentGateway
-    participant Database
-
-    User->>PaymentGateway: 결제 요청
-    alt 정상 흐름
-        PaymentGateway-->>User: 결제 승인
-        User->>Database: 트랜잭션 저장
-        Database-->>User: 저장 완료
-        Note right of User: 커밋
-    else 외부 실패
-        PaymentGateway-->>User: 결제 실패
-        Note right of User: 롤백
-    else DB 실패
-        User->>Database: 트랜잭션 저장 실패
-        Note right of User: 롤백
-    end
-```
-
-## Commit and Rollback
-- 정상 흐름에서 트랜잭션이 성공적으로 저장되면 커밋이 발생합니다.
-- 외부 실패 또는 DB 실패 시 롤백이 발생합니다.
-
----
\ No newline at end of file