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.
My father did? I had no idea.
.والدي؟ لم أعلم ذلك
Mein Vater? Das wusste ich nicht.
¿De verdad? No tenía ni idea.
¿De verdad? No tenía ni idea.
Mon père faisait ça ?
J’étais pas au courant.
Davvero? Non ne avevo idea...
O meu pai fazia isso? 
Não tinha sequer ideia.
Надо же...