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A spin-off of the CONFLICT series that started as a way to celebrate Koji Matoba's 30th acting anniversary and became its own series.
To celebrate his 30th acting anniversary, Kōji Matoba stars as Seiji Oda, the fiercest member of Tendokai, who joins the organization under Kazuma Washio (Hitoshi Ozawa). In 2011, Tendokai dominates Kanto, while the rising Santōkai threatens them. Meanwhile, in Yokohama, Seiji Oda forms a rogue group, Oda Dōshi-kai, and violently protects his turf, clashing with Jinseikai. As Tendokai's Vice-Head Ryuji Kondo retires, Keiji Oda (Seiji's brother) is tasked with calming the tensions between the two groups, leading to a reunion between the Oda brothers.
At Sagamikai's headquarters, Kawashige (Daijirō Harada) is confronted by Iwamura, the chief of Yokohama Port Police, who demands the dissolution of Sagamikai. Suspecting a traitor within, Kawashige orders his men to investigate. The suspect is Keisaku Sugita (Daisuke Iijima), a veteran of Sagamikai and father of Shinsaku Sugita (Gento Aoki) from Oda Dōshi-kai. When Sagamikai attempts to take Keisaku, Shinsaku intervenes, injuring their men and helping Keisaku escape. Seiji Oda (Kōji Matoba) is summoned by Kawashige, who demands the return of Keisaku, but Oda firmly refuses. War between Sagamikai and Oda Dōshi-kai is imminent.
