ATBO (; an acronym for At The Beginning of Originality) 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.
ATBO (; an acronym for At The Beginning of Originality) 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.
==Name== "ATBO" is an initial of At The Beginning of Originality which means the start of a dream. The name was originally "ABO", but was changed due to fan concern as the original name is a racial slur in some regions.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).