In 2000 the first tournament was contested by 11 Japanese and five foreign high school teams from various countries. (The tournament expanded from 16 to 20 schools in 2009, thus increasing in both size and importance.) It is a unique competition in world rugby for high schools, and is almost a "mini World Cup". The idea was devised and initially funded by the Sanix company president Mr. Munemasa. Sanix still provides about half the substantial costs for overseas teams to participate.