Y/N grew up with Severus Snape as her father and with Draco, Pansy, Theo and Blaise as her childhood friends. She had always liked Draco a bit more and the feeling was mutual. Considering their constant flirting. Snape was hiding a secret from Y/N and everyone. Everyone knew her as Snape's daughter from a random unknown relationship he had, that her mother died giving birth. She was Harry Potter's fraternal sister.