After losing a street race to Tatsuya Shima's legendary "Blackbird" Porsche 911 Turbo, high school student Akio Asakura purchases a heavily-modified first-generation Datsun S30 Fairlady Z from a junkyard. The car has a dark history of accidents, leading some to believe it's cursed; hence its nickname "Devil Z." Akio also discovers that the Z's first owner shared his first and last name, and was killed in the car during a race with the Blackbird. Meanwhile, fashion model Reina Akikawa joins the rivalry between Akio and Tatsuya with her modified Nissan Skyline GT-R R32.

Anzai-gumi is shaken when Wakagashira Akira Kawabe (Yoshiyuki Yamaguchi) is attacked. Learning of the Nakahama-gumi’s involvement, boss Takashi Anzai (Koichi Iwaki) heads there alone. He confronts Nakahama-gumi leader Hiroshiro Matsukaze (Shirō Shimomoto), recently released from prison. Despite his long-standing respect for Matsukaze, Anzai reports the attack on Kawabe and demands the Nakahama-gumi take responsibility. Shocked, Matsukaze pleads for forgiveness, asking Anzai to let it go for his sake... but Anzai won’t back down.

Ren Hoshizaki (Takahiro Kuroishi), a lone drifter, is hired by Katsuya Dojima (Daisuke Motoki), boss of the Dojima-gumi, to brutally assault Kuroda of the Tojin Alliance. Forced to lie low in Osaka, Ren takes refuge with the Fujimasa-gumi. Through Kugisaki (Yoshiyuki Yamaguchi), he is introduced to the “Battle Family,” led by Kenji Tsukino (Ryohei Abe). However, Ren openly declares that he refuses to work under anyone weaker than himself and challenges Kenji to a fight. Despite his undefeated record, Ren is defeated instantly by the larger Kenji. From that day on, Ren begins working under the Battle Family—but his path is far from simple…

After driving back the Kanto-based Tojin Alliance, the Osaka hangure group Battle Family, led by Kenji Tsukino (Ryohei Abe), stands victorious. Yet the powerful Kanto Sanrenwakai, which controls the Tojin Alliance, continues to seek revenge as part of its planned expansion into Kansai. One night, Battle Family members are drinking at their usual hangout—a bar owned by Yuya (Kaname Endo)—when Kenji is confronted by an old acquaintance, gangster Fujiyoshi (Honkon). Tensions flare, and Kenji and Yuya end up beating Fujiyoshi to death. Unbeknownst to them, Fujiyoshi was a sworn brother of Hanashiro (Hitoshi Ozawa), the wakagashira of the Fujimasa-gumi, where Kugisaki belongs. To settle the score, Kugisaki summons Kenji and orders him to kill Yuya. At the same time, the Tojin Alliance begins moving into Kansai, hunting down the Battle Family. With enemies closing in from all sides, a new and deadly conflict begins.