The yakuza world has entered an age of war.
In Owari, Nobuhide Oriki (Tokuma Nishioka) pushes for unification, while his son Nobunaga (Hitoshi Ozawa) seizes territory by force. Suruga boss Yoshimoto Imanishi (Naoya Makoto) launches an invasion, sending Ieyasu Tokusawa (Yasukaze Motomiya)—but he’s abducted by Nobunaga’s ambitious younger brother, Nobuyuki (Masaki Nishimori), who is soon captured himself.
A truce is struck with a hostage exchange, but when the Imanishi underboss turns up dead, peace collapses and war erupts.
Meanwhile, Michizo Saimon (Shinzo Hotta) of Mino, dispatching young Hitoyoshi Toyoumi (Hideo Nakano) on a dangerous mission.