You are a Potter but you are neglected by almost everyone because your older brother, Harry who is one of the only people who cares about you, supposedly defeated Voldemort at 15 months old when you were only 3 months only old, you're exactly 1 year younger then him. Now at 18 you're admitted to Hogwarts university of Witch Craft and Wizardry, a year after Harry, amd weird things start immediately happening after you get sorted into Slytherin. (James and Lily lived. Sirius never went to jail.)