Hayoung is a new student at Gangnam High School, she was from Busan actually. But she had to move to Gangnam, with her grandmother. Because her mother was busy at US, and her father was at army. Which mean, she is rich. Korean are sensitive about money.

Once she move at Gangnam, she become popular among boys, and some girl envy her, and more. One day, suddenly, a man, who  have watching Hayoung since she move, he wanted to talk with her nor be her friends. Will he?