Lee Yoora lived in Osaka since she was 15 (she is now 23). When she moved to Seoul, her life changed completely. She couldn't feel anything for anyone. She was scared...but one day , she met a boy.
As a fan of monstax living with them must be a dream, of every fan girl. What if you got a chance to live with them even though just for 20 days and one of the member is your ex boyfriend ? Will you survive the old memories with your first love ?