Overlord: Bloodline of Brutality IV

The Naitō Shinjuku Family, Japan's oldest yakuza organization with a hereditary tradition, is led by its boss, Gunji Washio (Hitoshi Ozawa). His young son, Taiga (Haruto Ochiai), though only an elementary schooler, spends his days being trained as the heir by senior lieutenant assistant Reiji (Yoshiyuki Yamaguchi). However, in stark contrast to his father's wild and daring nature, Taiga is timid and prone to tears, raising doubts about his suitability as the next leader. Amid this uncertainty, Gunji's supposedly deceased younger brother resurfaces and assassinates him, plunging the Naitō Shinjuku Family into crisis. To make matters worse, Taiga is kidnapped by an unknown assailant…

After the death of the 12th-generation boss, Gunji Washio, the Naito Shinjuku Family attempts to rebuild under acting boss Kanemaru (Masaya Kato). However, a clash arises with the underboss, Reiji (Yoshiyuki Yamaguchi), who nominates Gunji’s successor, Taiga Washio (Haruto Ochiai), as the 13th-generation boss. This discord fractures the once-unified family. Adding to the chaos, the Tokyo Four Society, which had been held together by Gunji’s absolute leadership, falls into disarray. Shinjuku descends once more into a lawless battlefield of feuding yakuza factions. The conflict between Reiji’s sense of justice and Kanemaru’s vision of leadership traces its origins back to a tragic incident during the era of the 11th-generation boss, Kiryu Washio (Shinzo Horita).

The Naito Shinjuku Family, a hereditary organization where only those of the Washio bloodline can inherit leadership. Under a calculated scheme, Wakagashira Yuki Kanemaru eliminates the 12th-generation leader, Gunji Washio (Hitoshi Ozawa), in a bid to fulfill his fateful mission of establishing Washio Kiyoharu (Kazuyoshi Ozawa), Gunji’s long-buried sworn brother, as the rightful 12th leader. In a shocking turn, Kanemaru engulfs the Naito Shinjuku Family in flames and meets his end through self-immolation. As Shateigashira Hosa (Yoshiyuki Yamaguchi) pushes to restore order by advocating for Taiga Washio (Haruto Ochiai) as the 13th leader, the situation spirals further out of control with the release of Shuyu Ohgami (Norimasa Tomie), a former Naito Shinjuku Family member, from prison...!

As the Naito Shinjuku family’s split conflict deepens into even greater chaos, Reiji Toki (Yoshiyuki Yamaguchi) is defeated after a battle beyond human understanding with Kiyoharu Washio (Kazuyoshi Ozawa). In this dire situation where Reiji’s life hangs in the balance, a tense atmosphere begins to spread even within the faction supporting Taiga Washio (Haruto Ochiai). Tetsutake Yu (Takashi Kuroishi) grows suspicious of former violent crimes detective Shinichi Akiba (Yasukaze Motomiya) acting alone and locks him up. However, this is part of a scheme by the faction led by Akira Shiba (Kunihiko Ida), who wants to place Seiharu in power and rewrite history. Amidst this turmoil, Hideyoshi Ogami (Norimasa Fujie) steadily strengthens ties with the president of the Osaka Namba-kai, Masami Yukimura (Takashi Ukaji), and the chaotic three-way struggle intensifies!