Y/n is the secret daughter of Crowley the king of hell her grandmother is Rowena and so on, and so on Crowley kept y/n a big secret mostly because he was dealing with The 2, most infamous hunters in the world Sam and Dean Winchester these guys were top tears. They have gone through purgatory and much more until one day. You don’t become much of a secret one day as you’re doing your normal job as a railroad demon. You finally get to meet the infamous two what happens when they need your help