Prologue?

(y/n) White is in her last year at Hogwarts School of Witchcraft and Wizardry. Being a loner for her entire life doesn't work in her favour as she has to come to terms with losing her parents. (Y/n) wishes to learn the truth about them and why they died, the person to help her through this is her potions Professor, Severus Snape. Whom she is introduced to a completely different side of.