Hwi-Kyung, the princess of romance. The handsome, wolf-like Three Musketeers who chase after Hwi-Kyung wherever she goes. They make a secret promise without Hwi-Kyung's knowledge. If any one of them falls in love with Hwi-Kyung, their friendship will be destroyed. A vow of no love. The confident prince, Yoon Suh-Rin's charm! Te-Ri, who became a two-timer because he loved Hwi-Kyung! And the one who concealed his love for Hwi-Kyung's happiness, the charismatic Jo Hwan-Sung's tragic love story!