Kim Hyoyeon (20) is a reporter. She got a mission from his boss to find out the activities of the heir of 'Oh' company. Because the heir is still in highschool, Her boss said that she must be a Highschool student so it's much easier to do the mission.

Oh Sehun (18) is a sole heir of Oh company. He is just 18 y.o. He is the Kingka in his school with his group called EXO. And he is the playboy who always plays with girl's heart. Arrogant, Handsome, Cold.

Lee Hyukjae (23) a football teacher. Cool, Gentle, Nice.

Krystal Jung (18) Sehun's friend, but she always said that she is his girlfriend. The queenka in her school. 

Characters : 

Kim Hyoyeon

Oh Sehun

Lee Hyuk Jae

Krystal Jung