Kashitarou is the son of Rintarou and a master of the Ogame style and its theoretical underpinnings. He is the older brother of Rintarou's two daughters making him the eldest. Kashitarou spent all his time alone on Juuren Mountain in Juuren village until Gama and Zenmaru joined him for a year as he trained them. It has been said that it was during this time that he made his first friends in Gama and Zenmaru.