Former assassin Daiya has long left the criminal world, but he decides to take up a mission to kill a rival gang boss for a huge payday. The catch: To kill his target at a talent show, he must go undercover and perform in a pop dance group.
Ryūichi and his small gang of Triad vie for control of the Japanese underworld in a crime-ridden Shinjuku quarter while Detective Jojima tries to bring it down.