You are the son of a mafia boss that everyone fears the most, Tetsuya Fumihiro is your father, you are the only son and you will continue what your father did one day. When morning comes you wake up and hear your father's conversation with Ryuta and Asahi, you stand beside the door and look at them

Tetsuya : Our drug sales are almost known by the police, can't you guys handle it!!

Asahi : We can change the boss's strategy, but that's risky

Ryuta : Your son's boss is here...