Satomi Oka is worried about his final choir competition but is accosted by a shadowy gangster, Kyouji Narita, who demands karaoke sessions with him.

After going to extremes to cover up an accident, a corrupt cop’s life spirals out of control when he starts receiving threats from a mysterious witness.

Taken in by the yakuza at a young age, Kenji swears allegiance to his old-school boss, pledging to adhere to the family code amid ever-changing times.