Dong Youngbae (Taeyang): A boy from Korea who applies for a University in America. He loves to dance. He's good at everything but at this one thing he can't do it. What is it? It's Girls. He can't comfortably speak to a girl. But in his University life he meets a girl who has a crush on or so they would say.

Tiffany Hwang: The member of the cheerleader squad. One of the most popular girls in school. She loves to sing. She is a smart person that excels at everything. Even though she is popular she has never dated anyone. When she finds out that a guy liked her, she also started to get feeling for him. 

Ok Taecyeon: The leader of the dance crew known as 2PM. He also loves to dance.  When he met Taeyang he knew that they would be rivals at first, but do to some unexpected incident they became close friends. He had a crush on Yoona from the cheerleader squad, He excels at Rapping and Dancing,

Im Yoona: A good friend of Tiffany also a member of the cheerleader squad. She also starts to get feelings for Taecyeon but she didn't want to date him because  later after she got to know Taeyang she started to get feelings for him. She excels at Singing and Dancing, But  Taeyang who had feelings for Tiffany rejected Yoona. 

Big Bang: A band crew that Taeyang joined due to his friends G-dragon, T.O.P, Daesung, Seungri's annoyence. This group excelled at everything ever since Taeyang joined.

SNSD or Girls Generation: The name of the cheerleader squad. Consists of nine members. one of which is Taeyang's cousin Jessica, G-dragon's cousin Yuri and T.O.P's cousin Sooyoung. as well as G-dragon's girlfriend Taeyeon (Taecyeon's sister), Seungri's girlfriend Seoyeon T.O.P's girlfriend Hyoyeon and Daesung's girlfriend Sunny.

2PM: Taecyeon's dance crew the best the university offers members Taecyeon, Jaybeom (Jay Park), Chansung, Wooyoung, Nichkhun, Junsu, Junho. later try to change their name to 2 Big 2 Bang that consists of 2Pm and Big Bang members after the friendship of Taeyang and Taecyeon.

Jay Chou: The bully, Excels at Fighting and Dancing tranfers to a new school to compete against 2 Big 2 Bang. Leader of the Black Dragons the biggest gang on campus with his girlfriend try to take over the school but to be stopped by two people,

Nami: Jay Chou's Girlfriend

Krystal: Jessica's sister

Uee: Taeyang's younger sister

Dara: Taeyang's older sister