I will make you all pay (daughter of pein)
Sakura is 19 and has been abused by her parents for as long as she can remember. All her 'friends' except shika, Sai and Hinata all treat her like shit. One day when sakura is organizing files for Tsunade. She decides to read her file and she learns that she is actually the daughter of Pein and konan. They loved her...