"Sorry, I'm afraid to love you" Im Dohyun, a young boy around his twenties who's exactly the definition of perfection. There's nothing he can't do, and there's no one better than him. Still, because of some little details, or not that little, he doesn't have an easy school life. Rejection, ignorance, isolated, those are words that he knows perfectly. But somehow, he learns to deal with it and becomes the number one with the highest marks. Soon the student council's president. But still, there's something inside him... There's something that makes him different from the rest. And his only cure is a little new girl transferred. Kim Dahyun, the only way for Dohyun to be totally perfect?