Akito is one of the most famous detectives in Tokyo and he has a good life, but he is actually very unhappy with his life because Tokyo is full of Yakuza and he is fed up with this life and he makes a new decision. "I'm going to kill all the Yakuza leaders in Tokyo!" So he starts making his plans to kill the Yakuza at night when his working hours are over, and by chance he meets a man who has the same goal as him.