Isamu Okita Bunta Sugawara is a man haunted by a grim origin and a date that mirrors Japan’s surrender in 1945. Born the sole son of an alcoholic prostitute-turned street food vendor who neglected him, he watched his mother drown while stumbling home drunk. With no education or money, he spirals into trouble, spending time in reform schools, and eventually forming a teenage gang that extorts people and abducts girls to sell to brothels on Kawasaki’s hard-edged streets. When the Takigawa yakuza family demands a cut of their earnings and Okita resists, he is brutalized and left for dead by the very crew he once walked with.
Abandoned by his former friends, Okita fights back, stabbing the gangsters who beat him and earning a ten-year prison sentence. In prison, he crosses paths with Taniguchi Noboru Mitani, a quiet inmate serving time for domestic violence. Upon their release, Taniguchi declines Okita’s invitation to reunite, choosing instead to confront the sight of his abused wife waiting outside the gates.
Back home, Okita spends his last coins at a sauna, where a confrontation with old associates rekindles old debts. The gang recognizes him and arranges for a prostitute—Kimiyo Mayumi Nagisa—to approach. Kimiyo, a survivor of Okita’s past cruelty, chases him to the factory that used to be his hideout. After a violent confrontation, they realize they still feel something for each other, and they connect in a charged moment of renewed intimacy.
A new option rises when Kizaki Asao Koike, a disowned yakuza, proposes building a fresh gang from local street punks to take on Takigawa. They embark on a war, raiding Takigawa-owned businesses, and Okita is shot as the conflict intensifies. The rivals contact Boss Yato Noboru Andō, a powerful figure who would rather see Okita bow to his leadership. Okita initially resists, but he ultimately yields to the pressure of the mounting conflict.
Forced to reconcile with Takigawa, Okita is drawn into the Yato family’s fold, serving as an officer with Kizaki as his second-in-command. He amasses wealth and control through illegal dice games, securing his own territory. Yet the life of a warlord estranges him from the thrill of combat and from the faithful fire he once had for fighting. His affair with Kimiyo fragments his marriage, and she leaves in anger after he shows blatant disrespect toward the Saiei Group’s chairmen, Eisaku Owada Asao Uchida.
The Saiei Group, led by the Owadas’ alliance, expects contrition. Yato forces Okita to perform yubitsume as a show of apology, but Okita refuses, earning expulsion from the circle. Advised to leave town, he instead leads a guerrilla war against the Saiei Group, choosing to fight to the end rather than bow out.
As the heat of battle redoubles, most of Okita’s gang is murdered, and even Kizaki turns on him, attempting to flee only to be struck down by a car in a brutal rescue gone wrong. Yato’s forces strike a decisive blow, killing Takigawa’s captains and offering Owada a veneer of peace in exchange for Okita’s life. With only two loyal men left, Okita faces surrender, cutting off his own finger in a grim display of surrender, while the Saiei Group reneges on their promise, carting off his remaining men to execution.
Kimiyo, who once forgave him, tries to intervene to save Okita, only to be fatally stabbed. In a rage driven by grief and betrayal, Okita lunges at Yato, stabbing him in the chest, but the Saiei Group finishes him off with gunfire. The movie closes on the brutal note of the two murdered bodies lying side by side, a stark testament to a life spent warring with the world that shaped him.
