Kosuke Takahashi

Following the accidental death of the head of the legendary biker gang Omiya Strikers, "Garou no Shinnosuke," a conflict breaks out between two major factions within the Strikers over the vacant position. However, to become the next head, one must have the legendary motorcycle left behind by Shinnosuke. Then, his younger sister Maki (Sakurai Ayu) suddenly emerges as a candidate for the position. Maki is confused, but her inherited delinquent blood awakens.

Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker, the evil secret organization planning to dominate the world. After being remodeled into a cyborg, Takeshi escapes and swears to protect the world from the inhuman monsters.