Taeyeon is the most popular boy in school for his looks and his singing talent. He and his friends likes to humiliate other students. One time, a nerdy guy named Nichkhun asked to join his band. Taeyeon just humiliated the kid in front of the other students. When Taeyeon was going home, their neighbor, Tiffany, a fat girl younger than him, confessed her love for him. But Taeyeon told her she will never be his girlfriend. Tiffany said that someday he will regret his words.

Fast forward to the future, Taeyeon became a loser. Nichkhun became his boss and Tiffany bloomed to a beautiful lady and became a model. Taeyeon soon finds himself falling for the girl. One night, a website he unwillingly registered in, changed his life. He became a matchmaker. He needs to match 3 out of 4 couples or else he cannot love again. Will he be able to do it and can he bring back Tiffany's love for him?