 At the beginning of the True Devil Choujin arc, he deems Akuma Shogun and his Devil Choujins to be not "true" Devil Choujins, trapping them and the other Choujin factions in their respective homes and forming a deal with the Omega Centaurians.Mayumi Kinniku is Kinnikuman's father and the 57th King of Planet Kinniku.He was also the champion of the 9th and 10th Choujin Olympics.