Ye-won was trying to climb up the fence of the school in order to cut self-study and accidentally kissed the leader of the 4 smartest guys in the school. Due to the kiss, Ji, Eun-sung forced Ye-won to be his girlfriend because he doesn't even try to grasp a girl's hand if the girl is not going to be his wife. At first, Ye-won hated him who is selfish and finical, but unconsciously, she was attracted to him. This guy seems to have a broken heart. Finally, Ye-won decided to hug and embrace his hurt...