Lee JeongWoo, who possesses a kind and loving heart, follows a pigeon that he had treated for an injured leg, to the back of the school, and meets an angelic person who was fast asleep, Jung Haein. Thinking of their meeting as fate, they become close to one another. But, JeongWoo finds out that Haein’s ideal type is the opposite of him, a "GwangGong", and ends up deeply heart broken. After discovering this truth, JeongWoo is determined to become Haein’s ideal type 8 years later, they are reunited once again at a bookshop. And so, JeongWoo, who wants to become a GwangGong, and Haein, who wants JeongWoo to revert back to his old self, a conflict begins.