Who will be crowned victorious in the ultimate fight between the strongest high schooler on earth and the successor of the Niko Style?

Duwei is born into this new world from Earth without a sound, he does not cry, he simply stares at the people around him. As he grows he does not speak and curses this new world he was forced into. His Father a Great General is sure there must be something he has an aptitude for, however he is simply trash. Disregarded by his family as the Retarded heir. This is the story of his journey to discover the truths of this world and use the knowledge of his past life to remove his title of retard, even if he has to become a devil.

On the run from his troubled past, Juuzou is forced into competing in a deadly underground fighting tournament. Skilled in the respected martial art Takemiya-ryuu, Juuzou must navigate a path filled with formidable foes and his personal demons — all while dealing with a bounty of three million yen on his head and a detective on his trail.