Training period itself was 15 years! Sangam-dong's legendary trainee Soon Kyu and world class idol seniors who came to teach us the secret on how to debut!
Overview：Training period itself was 15 years! Sangam-dong's legendary trainee Soon Kyu and world class idol seniors who came to teach us the secret on how to debut!
![[전설의 연습생] 상암동 레전드! 15년차 연습생 순규! ㄴ상상도 못한 정체ㄱ 大.공.개. l 티저(Teaser)](https://i.ytimg.com/vi/GEtvXXC3H4E/hqdefault.jpg)
