Son Seung-wan, or known as Wendy Shon, is a girl grew up in Korea and moved to the U.S., she hated her life so much that she rebel, do miserable things and go to bars and drink until she passed out. Her parents got so tired of it and punished her and have to go back to Korea, her hometown, as her punishment, she has to study in her parent's school (her parents own the school) and has to act as one of the nerds in the school. There she met Bae Joohyun, one of the bullies in SNU. Joohyun always bullies Seungwan but what Joohyun didn't know is that Seungwan knew what she was doing to her but being the daughter she is, she wants freedom, she just let Joohyun bully her. As time past, both Joohyun and Seungwan or named as Kim SoWan fell in love. But things started to change. How will their lives go?