Sungmin was only 4 years old when her parents were killed right infront of her. 11 years passed Sungmin still seeking out for revenge, when she was in highschool as a teenage girl she made friends with Kyuhyun , Ryeowook , Yesung , Donghae , Eunhyuk , Seohyun , Tiffany , Jessica , Yoona and many more. But that one day change her....