Prince Kinnikuman, who came to Earth from Kinnikusei, a planet at the end of the universe, was always ridiculed by humans as a useless Chojin. However, by chance, he was given the right to participate in the Chojin World Cup, a tournament to determine the world's best Chojin, and by a miracle, he won the championship. The following year, he even won it again! Since then, he has become a central figure among Seigi Cho...