Orange Caramel is the first sub group formed from the South Korean pop group After School. This sub group was formed with the three newest members (at the time of Orange Caramel's debut): Nana, Raina and Lizzy. Orange Caramel's concept is more lighthearted and sweet unlike many girl groups that have recently taken on darker, sexier concepts. The group debuted with mini-album "The First Mini Album" on June 21, 2010. The album was a commercial success, peaking at No.