The fic I am looking for I haven't seen in a while and might have been deleted. Dean is working his way through a degree taking care of angels. Cas is an Alpha angel, the first ever caught and has been violent to keepers in the past. He takes a shine to Dean, who eats his lunch by Cas' cage. The facility they are keeping the angels in has strict security and Dean is learning the ropes from Benny, I think. Inais and Hester are mates, or Inais wanted to mate with her and got injured. The endgame was going to be Destiel. It's a multi-part story.

That's pretty much what I got before I bookmarked it to read when finished. My old bookmarks went the way of the dodo with my old computer and I can't find it now. Any help would be greatly appreciated.