IST Entertainment's brand new rookie boy group ATBO has officially announced their debut with their 1st mini album, 'The Beginning : 開花' ('The Beginning : Gae Hwa').

ATBO's 1st mini album is set for release on July 27 at 6 PM KST and will signal the beginning of "creativity", with an emphasis on the keywords "light", "dark", and "color". 

Meanwhile, the 7-members of ATBO were previously chosen on the Kakao TV idol survival program 'The Origin - A, B, Or What?'. The group's name is short for "At the Beginning of Originality".

Look out for more details on ATBO's debut, coming soon.