Tiffany is a hopeless highschool delinquint with Jessica as her older sister who has to take care of her and clean up after her mess. She has no girlfriends and her best friends are Yunho and Changmin, one seeing her as a younger brother, and the other...well...who knows. She has no care or hopes for life and she couldn't care less. She's the happiest moron she knows! Until she one day hears everybody talking about their future careers and reality hits her. But little does she realise how ins