When Kyungsoo's family moves to Seoul to "get a better life", Kyungsoo leaves his best friends and starts a new school. His roommate is Park Chanyeol who's goofy and silly. And then there's Kim Jongin.
Saejin is the schools introvert. She finds it hard to get close to People yet is so afraid of being alone. Ever since moving to this new school, both chanyeol and baekhyun, the popular guys in the school take an interest in her. she experienced friendship and hate. Maybe even love?