ATBO

ATBO was a South Korean boy group formed through IST Entertainment's survival competition The Origin – A, B, Or What? in 2022. The group consisted of six members: Junseok, Junmin, Hyunjun, Seunghwan, Yeonkyu, and Won Bin. Originally a septet, Rakwon left the group on May 6, 2024, due to health issues. They debuted on July 27, 2022, with the extended play (EP) The Beginning: 開花, and disbanded on December 17, 2025.