In order to bring peace and prevent the destruction of his kingdom, King Uldred offers Dean, the chieftain of a savage barbarian tribe, one of his daughters in marriage. But instead of choosing a pretty maiden, the barbarian chooses the young prince Castiel as his boy toy. To defend his honor, Castiel challenges him to a fight and loses, becoming Dean's captive.

The prophecy says that when Castiel turns twenty-three winters old, a stranger will come into his life and bring a lot of suffering. But do prophecies always come true? Demon Dean/human Castiel AU