The president of his class, Haejoon's a high school sophomore student of small stature whose biggest concern in life is school and his grades. One day when he returns to school for a new year, he falls in love at first sight with Yoon Woo in his class. He doesn't recognize what's come over him until his best friend since elementary school, Chanwook, spells it out for him. Despite his infatuation over Yoon, Haejoon dares not profess his love to Yoon because he feels he's out of his league. After all, Yoon's Mr. Popular being the vice-president in class, gorgeously handsome, friendly to everyone, and always displaying a bright smile. But one day he gets the idea from Chanwook to ask Yoon to give him lessons on dating. It's Haejoon's only way of finding out more about his crush and to get closer to him. Will Haejoon be able to win Yoon over? Or will he be rejected and lose the luxury of having Yoon as his friend?