Bad boy Yang Yoseob doesn't do so well at his old school, Centennial High School, so his mother forces him to go to Rivermound Prep. Accompanying him is the BEAST band, since they would hate to see Yoseob alone without them.

One day during lunch, a girl (you) gets tripped by the school bully, Jonghyun (from SHINee) and falls into Yoseob's arms.

Little did they know, that a tiny fall could change their lives.