Born as the successor of a low-ranking noble household, Raven Varte wears the sin of plotting a rebellion against the empire. To be granted amnesty, he was sent to fight demons alongside the worst corp of the empire, the ”Demon” corp. Most say that it is a place where most won’t survive for even a year, but Raven somehow managed to survive for ten. When his amnesty was in front of his eyes, on his last battlefield, he met the ‘Successor of the Pendragon Duke Household, Alan Pendragon.

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!!