A Wretched Love(Sal x Ash Creepypasta AU)

⚠ Slight EP 5 spoiler! ⚠ Soooo... I had this idea to make a fan-fic about Sal and Ash, but with a twist... THEY'RE CREEPYPASTAS! So I have no idea if anyone has already made an AU like this, but here is MY version! So here's how it goes: So obviously it goes as ep 5, but Sal still has a thirst for murder, and he convinces Ash to kill with him, he posesses her arm, and Ash uses her arm to slice, burn, or crush her victums. They are both on the run from the police (well, mainly Ash cuz Sal is a ghost) but then they are insteal found by Slenderman. Ash is then labeled as a Half-Demon (because of her arm) and Sal is considered a Demon. They both have rooms in the Creepypasta Mansion and sleep in the same room(even though Sal doesn't sleep.)
Info about the characters:

ASHLY: Ash is Half-demon, Sal posesses her arm, but not ALL the time, he has the option to leave the arm. Ash uses Sal's prosthetic to hide her identity when she is out killing. She also takes pictures of the people that she stalks with her poloroid camera so she can keep track of them until it's the right moment to kill. Ash still has her motorcycle and rides it around in public like normal (since nobody knows that she's a killer). Ash is the only one that can see Sal when he is in his invisible form, since her blind eye can see into the ghost relm.

SAL: Sal is a Full demon, he has different forms he can transform into, his invisible form, visible form, and human form. When he is in his human form, he looks normal, like he did before he had died. He wears normal clothes