Park Chorong's life gets turned upside down when her dad is offered a new job and her whole family moves from Busan to the city of Seoul. With a new school, new people, a new city and advanced school work Chorong struggles to adapt to her new life. Until she accidentally slipped up and is thrown in between a long war that has been going on for years. Between the school's swim team (Monsta x) and the school's soccer team (Bangtan boys). She then gets caught up in the rich world of lies, games, tricks, fantasies and emotions and soon becomes the target of these two dangerous groups. However what happens when both leaders of these admired groups go after the same girl, Chorong?