TO1 (TOgether as 1), formerly known as TOO (Ten Oriented Orchestra), was a boy group under WAKEONE Entertainment created from the survival show WORLD KLASS. The group consists of: Jaeyun, Donggeon, Chan, Jisu, J.You, Kyungho, Daigo, and Yeojeong. They debuted under n.CH Entertainment and Stone Music Entertainment on April 1st, 2020 with the 1st mini album 'REASON FOR BEING: 仁 (Benevolence)'. They announced that they changed their name to TO1 on March 28, 2021 at KCON:TACT 3. On December 31, 2023 TO1 will officially disband after all the members decided not to renew their contracts with WAKEONE Entertainment.