Cybernetically enhanced arena combatants compete for fame and fortune...or die trying...as society rises from the ruins of war. The globe has now entered the Era of Rebirth in the nineteenth century, emerging from the destructive conflagration of war. The nations have been united by the sport of mechanical martial arts. Combatants with cybernetically enhanced bodies transform into ruthless murdering and battling machines, turning their blood into steam. Young Levius is one of those fighters that only cares about surviving in the arena. The decisive battle between Levius and the strong Arthur Graynore, the man who founded Amethyst, has finally arrived. Their front line? a concealed underground ring beneath the competition venue.