You know Teen Top? What would happen if a girl happened to be in the group. Imagine also if she was pretending to be a boy. Meet Elina, the fourth daughter in a family of five girls. She moves with her younger sister from America to Korea in hopes of having more luck. She finds herself mistaken for a boy and into a new band called Teen Top. Having no other job to support her and her younger sister she doesn't bother to clear up the misunderstanding. How long can she keep the secret?