It's in the Past || A Destiel AU
Castiel Novak is 23 year old premed student and has been with his boyfriend, Dean Winchester, for four years.
At the age of 18, he ran away and managed to get away from his crazy and dangerous family. He hasn't spoken or seen any of them in five years, so when his older brother shows up at his door, he's going to get dragged back into the life he thought he had escaped from and dark secrets from his past come back to haunt him.
Plus, Marv/Metatron is a douche.
P.S. This sounds like something you'd find on the back of a book, but it's not as angsty as it sounds.