The "SANIX CUP Rhythmic Gymnastics Group Championship" started in 2003, and after the 10th tournament in 2012, it has evolved into an international tournament. We have endeavoured to raise, expand, and exchange internationally with the junior class. By holding a new competition for seniors this time, we strive to promote new goals and rhythmic gymnastics for junior competition participants, experience world-class rhythmic gymnastics, and provide opportunities for international exchange.
During their stay, we held an exchange event and performed the dances of each other's countries. Participants in the junior tournament reunited over time and deepened their friendship after a long time.

See below for the Japanese version.
http://www.sftlegacy.jpnsport.go.jp/wp/jp/20171023-1/