In the past, two major organizations, the Renjo-gumi in the east and the Yamamura-kai in the west, attempted to establish an oligopoly and brought about a systemic order in yakuza society, but both of them dissolved and disappeared. As a result, independent organizations have fallen into a chaotic state where they greedy for profits with ambiguous boundaries. There was a man who had returned from America. The man's name is Ando (Hitoshi Ozawa). Under Ando, ​​men with an iron will and passionate ambition gather together, aiming to revive the way of chivalry that is thicker than blood. He was about to swing down the iron hammer of a man's righteousness against Japanese gangster society.