Sooyoung is a very famous student in Eunji High School.She has a long farewell with her ex-girlfriend,Jessica Jung.What happened after she meet Lizzy,new student in her class and what happened when she have to stay in the same house with Chae Rin  aka CL?   What happend when Lizzy and Chae Rin falling in love with Sooyoung while Sooyoung heart still for Sica.