After a brutal assault on Mutsumi headquarters with a tank, Takashi and his rescued wife Mariko go into hiding with Mr. Shao in Chinatown, while Hideshi continues to hunt for Takeshi. The pursuit threads through crowded streets and tense confrontations, painting a picture of a dangerous underworld where loyalties shift as easily as fortunes.
Rie, a steady presence in the chaotic world around them, urges Takeshi to find a legitimate job, and the group takes refuge in a church near the geisha house run by Rie’s father. Rie spends her days caring for a friend from high school who has been hospitalized since a car accident, a tragedy that keeps the past close. Rie’s backstory is heavy with family tension: her mother has died, she clashes with her step-mother Chiharu Ishibashi who now runs the geisha house, and Chiharu’s decision to sell information about Rie’s whereabouts to Kenmochi’s men for a large sum of money intensifies the danger surrounding them.
Meanwhile, Takeshi visits his mother Haruko in a care home, where she greets him with a confusing misnaming—calling him Iwaida—and reveals a startling truth: Haruko was pregnant with Iwaida’s son and raised Takeshi as her own. Hideshi weighs this revelation against the broader conspiracy, wondering why Mr. Nishiwaki would have Takeshi kill Iwaida if he knew the truth about Takeshi’s father. The tension tightens as Kenmochi’s men close in on the church, but a twist of conscience leads Chiharu to intervene and die protecting Rie in a gunfight, while Hideshi seizes the moment and Takeshi finishes off the intruders.
Returning to Yokohama, Hideshi reunites with his wife and daughter Natsumi, only to face fresh investigations. An officer named Shiraki informs him that Yamaguchi from the Hyogo Police wants help solving the murder of Iwaida and that the hitman is Takeshi Miwa, Hideshi’s younger brother. The police also want to locate Hideshi’s other brother Takashi, tied to the earlier rescue of Mariko. In a decisive move, Hideshi pays off the officer and arranges the release of a pastor questioned in the church shooting, while sending Shiraki to probe Kenmochi’s connections to the Mutsumi Group.
The trio then finds a temporary safe haven at a dojo run by a seasoned mentor, Mr. Maki, who once took Hideshi in after his father’s killer was dispatched. Tono, Hideshi’s secretary, explains how Maki’s martial training helped Hideshi heal. A boat trip with Tono turns dangerous when three men in personal watercraft attack, circling and firing at them but failing to strike a fatal blow.
As stories intertwine, Hisako re-enters the fold with a bold bid to undermine Nishiwaki by offering herself as a partner, while Hideshi rejects the alliance. Shiraki exposes a darker scheme: Kenmochi plans to blackmail Nishiwaki with information about Iwaida’s knowledge that once could topple Nishiwaki’s underworld empire. The emotional toll deepens as Haruko commits suicide, and the three brothers attend her wake, bringing her ashes back to the family home. The home becomes a target, and an armed assault follows, leaving Takashi dead and Mariko heartbroken.
Seeking leverage, Hideshi presses Hisako to extract information from Omaeda. Hisako’s dominatrices torture Omaeda until he collapses, and under drugs, he reveals a chilling slice of history: Nishiwaki sold information about postwar underworld activities to GHQ, a power move that built his fortune. With the war’s shadow fading, only Omaeda, Iwaida, and Haruko know the truth, making them targets should the truth ever surface.
In a final, high-stakes maneuver, Hideshi calls Nishiwaki to a meeting in the Philippines to seal a counterfeit-money deal. In Manila, Nishiwaki’s plan unravels as his brothers are ambushed by a helicopter shooter and guerrillas on the beach. Nishiwaki offers Hisako the Number 2 position, but Hisako reveals grander ambitions as Hideshi and Takeshi close in to kill Nishiwaki, setting the stage for a climactic confrontation that tests loyalty, family, and the brutal code of the underworld.