She who must not be named

Reyna Riddle comes to Hogwarts to escape from her horrible history but how can she hide her secret especially when she befriends Harry and how can she shut down the guilt she feels every time she looks at him? And also there is the problem of her identity not be found by Voldermort .This the story of a girl who tries to make a name of her own, shadowed by the bad title her brother earned.....