The Boy Who Lived

Harry just came to Hogwarts, with just knowing who he is. He meets Samantha(Sam) Winters. They were pretty much the same. Beautiful eyes, bright(smart), magical, etc. The main differences was that Harry was a boy, Sam was a girl, they lived in different houses(during holidays), and while Harry's parents were dead, Sam's were the Malfloys. They become best friends, and you can guess the rest from the title.