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.
But if you can move on by learning about
the side of your father
لكن إن استطعت المضيّ بحياتك بعد معرفة ذلك الجانب 
،من حياة والدك الذي أبقاه مخفيا عنك
Aber vielleicht ist es gut,
pero si es lo que necesitas
para poder voltear la página,
pero si es lo que necesitas
para poder pasar página,
Mais si connaître
la face cachée de ton père
Ma se scoprire le cose che Iwao non ti ha mostrato
 può aiutarti ad andare avanti...
Mas, se descobrir o lado que seu pai ocultava de 
você for motivo para você poder seguir sua vida,
Но если знания о той стороне отца,
которую он тебе не показывал,