Lost In The Shadows(Harry Potter X reader)

You were an orphan and like many others you had appeared to have come from no where. Becoming a constant person everyone hated due to your odd appearance. Everything seemed to point to you living as a nonexistent person , running in the streets so you wouldn't be sent back to one for those hellish places.. Until one day Professor McGonogall finally manages to find you while holding a letter with a red seal.