AU: In anger for acting against the Phoenix King, a young godling was thrown from the Realm of the Gods into the World of Man. He was told to live among the mortals and learn his lessons in their their world. And to this day, the godling has lived with man, trying to gain favour and learn how to become a god once again.

Cas has been acting strangely, dragging Dean around Heaven trying to cook—and in the process demolish—Dean's kitchen.

Dean realizes that staying in Heaven and catching endless fish isn't living up to its hype. Especially since the gates of Heaven are still closed and there are no angels to guide you in the hereafter. Castiel is surviving Earth, fallen and human, until a reaper brings his attention to a hunt forcing him to seek out his fallen brothers.