"We customize our own!" CLASS:y is a 7 member KPop girl group formed by the MBC survival show "My Teenage Girl". They debuted in Korea on May 5, 2022, and in Japan on June 22 of the same year. The group currently consists of Hyungseo, Chaewon, Hyeju, Riwon, Jimin, Boeun and Seonyou. CLASS:y's...