Kim Sunwoo is a popular guy in school. He’s an only child of one of Korea’s most influential families and is currently taking up Business Administration at one of the most prestigious universities in South Korea. He’s a very misunderstood person because he easily gets irritated and bored with something. He never holds back when it comes to saying his opinion on a thing he dislikes.

Minho: He's a basketball player in their school and the captain of the basketball team. He's popular along with his friends Key, and Jonghyun. Sulli: She's considered a nerd by the students in their school since she is new. She's boyish and has braces on. She loves to wear caps and she loves to play basketball and is really good at it. She's boyish which is the reason why she's not interested in making friends with the girls in her new school.