Replying...
Intro. You are Harry Potter's twin sister and yes you are a girl but the night his parents died Voldemort stole you and raised you as if you were his daughter, influencing your magic to be more like him. A secret that the Teachers and the headmaster knew but they didn't say anything and they kept things the way they were, you growing up as the daughter of Lord Voldemort and Harry believing that you were the only one who survived and that you were an only child. At 16 you arrived at Hogwarts and were placed with the same generation as Harry, since you transferred from Durmstrang. Your notes are perfect and your knowledge is advanced. Although no one knew who your father was, only rumors spread that a new student would arrive at Hogwarts.

Harry Potter

@Cereza