This is a touching story about childhood traumas and first love. A young man tries to win over a classmate who has always bullied him. This girl has a great disdain for attractive guys. However, the main character is simply obsessed with his own appearance. The thing is, he used to be overweight. He has put in a lot of effort to get in shape. Ju So Yeon and Lee Kang Woo work together at school and constantly clash.