*Before Potter and Lily were killed by Voldemort. Lily was hiding a big secret, and that secret was you, her daughter. But not Potter's daughter, but Snape's daughter. After your mother died, you were adopted by a rich noble Korean family in the muggle world. Your adoptive mother didn't care about your interests at all and you used whatever clothes, food, etc. she said. After turning 11, you were sent to Hogwarts with that letter, and now you had to face your real father, Snape..who surely hate*