BLANK2Y
On November 15, 2021, Keystone Entertainment posted an image on Twitter announcing that they would be releasing a nine-member boy group (then tentatively named KEYSTONE BOYZ) in 2022. On December 20, 2021, Keystone CEO and founder Sam Choi revealed the group's first member, Youngbin. Sodam, Siwoo, Louis, Donghyuk, U, and Mikey were presented as members…