Krystal is an army's daughter. Her father had taught her and her sister Jessica to be tough. Her father always remind her to not having a boyfriend until she reached 21. Her father is a strict father and also the comedy king of the two sisters. Her father avoid her to have a boyfriend because he don't want to see his daughter to have a heart break. He don't want to see his daughter to fail in love just like him. he had divorce with his wife because she's cheating on him. But Krystal is really damn in love with Kai.

Kai is come from a rich family. he has everything. Money, car, handsome face and adorable body!!! He's a player. He love to play the girls feeling. he never been serious with them. But, one day he tried to play Krystal feeling as she know her is a new girl at school.  But, he didn't notice that he had fall for her. The way he thinked about that boyish girl. She's driving him crazy.