Tatsuya Iguchi, a legendary delinquent feared as the "Mad Dog of Komae," is released from juvenile detention. He starts a new life working at a yakiniku (grilled meat) restaurant called "Sanrui," located far away from his hometown, under the care of his uncle and aunt. However, Tatsuya is under probation, and if he gets into another fight, he's out. In front of him appears Kaname Abe, the vice leader of the biker gang "Zanjin Kirihito." This encounter marks the beginning of Tatsuya's intense journey toward rehabilitation. As he faces gang conflicts, forms new friendships and bonds with his newfound companions and family, the path Tatsuya must take to protect what's important to him unfolds.
Mio came to Tokyo with her sights on becoming a singer/songwriter, but that dream was dashed by a scandal without her ever becoming successful. She returns heartbroken to her hometown of Shimokawa where connecting with her parents, her former classmates, and the rich natural surroundings help her emotionally recover.
The manger of cabaret club "Hanibani" named Shū, a worker at the club named Koji, and one of the patrons named Ken succeed in robbing a bank. They agree to divide the stolen money equally into three, but they become consumed by greed and try to get more than their share. In addition, a renowned figure is after their money.
To be recognized as the best, the inexperienced street racer Kazuki will need the help of a former champion and his trusted Mazda RX-7 to take on the field in this burner of high-octane Tokyo street races.