Hazuki Family's maid Ine hands a letter to Ryo, who is restless from his Father's death. The letter was sent from a person named "Yuanda Zhu" to his father which contained characters he cannot read. Ryo begins investigating the letter to find out his Father's past. As he further investigates, he is targeted by "Mad Angels", the gang that runs Yokosuka Harbor's underground business.
I never thought that Chen's 
crew would move in on us...
...لم أتوقع أن يتحرك طاقم تشين ضدنا
Hätte nicht gedacht, dass uns
die Typen von Chén herausfordern.
Quién diría que alguien de Chen
vendría por nosotros…
Quién iba a decir que Chen
enviaría a alguien a por nosotros…
J’avais pas prévu que les Chen
nous chercheraient des noises.
Non pensavo che il clan di Chen
 si sarebbe mosso contro di noi.
Eu nunca pensei que o grupo 
de Chen iria nos atacar...
Кто ж знал, что Чэнь
устроит на нас охоту...