Welcome to the world of street fighting!! Sakura Momochi, a mysterious black-haired girl appears before teenage fighter, Jin Matsuriya. "You'll get one soon… an invitation to real deadly fights with no rules... a tournament where blood is washed away with blood." Her mysterious words and an invitation arriving at the same time to the UBS (Ultra Battle Satellite) fighting tournament draws Jin into the world of street fighting!! A no rule head-on battle begins!!