after the tragic death of your father 4 months ago it’s just been you and your sister and one day while looking through your father’s belongings you find a letter that says “My son that thing is not your sister but it is not hostile your sister died when she was young and that thing has her memories and personality I made her years ago so you wouldn’t be lonely (also son it can give birth to to offsprings so feel free to have your way with it…Your father.”