Back in time - William afton/Dave miller x reader

When you were a teen you took your brother to a place named "freddy fazbears pizzeria". That's was a mistake on your part, because he ended up getting killed by his favorite Animatronic, foxy. You soon went mad, as you whole family blamed you. It was your fault. You became vengeful of people with perfect family's. So, you took things into your own hands. You murdered many children to tear family's apart. But, one day you drove by Freddy's again. You were shocked when you saw it was ash. You saw something about it on the paper but didn't pay attention, so you decided to explore. You found foxy, and he seemed untouched. You heard your brothers voice, and you started to get dizzy. The last thing you heard from him was "I miss you", before you spawned in hell. With the devil himself, William afton.