Miyuki Ichinose sees something remarkable - a kid on a 50cc moped beat a 750cc bike - and being the daughter of a motorcycle team chief, she does something about it and invites Gun onto the team. Gun finds it hard to fit in at first, and the rivalry between him and successful rider Hideyoshi makes things even harder.

Gun Kyoma is an extremely fast 17-year-old bike racer. He must pair up with his rival and new high school classmate, Hijiri Hideyoshi, to compete in an endurance race at Suzuka International Racing Course.