Woo Ju Ho likes to spend his days – and his money – on good drinks, fun clubs and loose women. Hoping to build his character, Ju Ho’s grandfather threatens to disown him unless he agrees to teach high school for two years. At first Ju Ho approaches teaching much like he did his previous playboy life – lackadaisically. Fellow teacher Yun So Ju finally gets fed up and decides to take it upon herself to set Ju Ho straight. But can a playboy teacher be reformed?