The ultimate form of martial arts that fuses the human body with machine: Mecha Boxing.

Having lost both is father and his right arm in the war, our protagonist is a lonely young boy named Levius whose mother is in a vegetative state. Using his prosthetic arm, he dives into the world of Mecha Boxing where the ultimate form of martial arts is created through a fusion of the human body and machine. He goes on to develop his skills as a young fighter.