So-Ra (YOU) is the main character in this story, who has a crush on the young school doctor Kim Jongin, commonly known as KAI by the students. So-Ra gets butterflies in her stomach everytime she sees Kai walking pass her down the corridor. She wants to see him every day and soon enough she makes a bunch of excuses just to be able to see him. Her best friend Jane (BPPOP) whom you've known since kindergarten tries to help you, when she can't convince you to like someone closer to your age.

Drama/school life / romance about members of exo and main character Park Hwa Yung.