Ann, is just an ordinary girl that attends to Performing Arts of Seoul. She's not like other people who attend to this school because she's a trainee. Only because she loves music. While at the same time Jo Kwangmin her child hood friend way back in kindergarden had met once again. She admits herself that she does have feelings for him before, when she left Hong Kong at the age of 10. 7 years have past and there they once again had met in the school... But will her feelings change for a guy that has the most charming smile ever and helps her the most when the twins weren't around? Who will she chose in the end? Jo Kwangmin or... Lee Jeongmin?... Two boys over one girl... who will be who's forever?...