 A side story explores his backstory, where he is portrayed as an amnesiac named Heladoman, until he is told of his heritage before the Peruvian qualifiers for the 21st Choujin Olympics, where he then embraces his original identity, Benkiman.In the Perfect Origin arc, he attacks Strong the Budo, who turns him into a regular human being.He returns as a Choujin in the True Devil Choujin arc, where he fights Gear Master.