In Asia, a mysterious assassin organization operates under the guise of a noodle shop hidden in a bustling city, serving as a haven for killers. Assassin No. 4, orphaned at a young age and raised in the noodle shop, is sent to Japan to eliminate a yakuza boss. However, he is unexpectedly ambushed by his client, a Japanese girl seeking revenge. To exact her vengeance, she spares no expense in hiring the assassin and attempts to enlist No. 4 in her grand revenge plan, only for their actions to inadvertently provoke a relentless pursuit by the yakuza, putting both their lives in danger...
| Actor | Role |
|---|---|
 Jeffrey NgaiNo.4 | No.4 |
 Sara MinamiKumo | Kumo |
 Chu Pak-HimAgent W | Agent W |
 Rosa Maria VelascoAbbot | Abbot |
 Naoto TakenakaSonjya | Sonjya |
 Takumi SaitohSakamoto | Sakamoto |
 Daniel HongNot listed | Not listed |
| YYurito MoriNot listed | Not listed |
 Lam Yiu-SingNot listed | Not listed |
 Iori WadaNot listed | Not listed |
 Takuya NegishiNot listed | Not listed |
 Eriku YozaNot listed | Not listed |
 So KakuNot listed | Not listed |
 Tomohiro WakiNot listed | Not listed |
 Yoshinori TashiroNot listed | Not listed |
 Takuya KusakawaNot listed | Not listed |
 Yuya EndoNot listed | Not listed |