It's the 19th century, and the world has entered the Era of Rebirth, recovering from the devastating flames of war. The sport of Mechanical Martial Arts has galvanized the nations. Cybernetically augmented fighters turn their blood into steam and their bodies into brutal fighting--and killing--machines.

Young Levius is one of those arena battlers, hell-bent on winning in order to simply survive.

Levius is victorious in his deadly match against A.J. and reaches Grade I, the top league, where the battles are even more intense. His first opponent is Oliver E. Kingsley, who is known as the Emperor and is currently undefeated. Despite all the challenges he's faced so far, is Levius truly ready to fight against a top competitor?