Demons and Angels
The words total fandom come to mind...
Anyway, this is my first attempt at fanfiction. So... what it fanfiction of? Not anything you know! It's a novel written during Nanowrimo time written by an internet entity only known as smaur. It's really good stuff and you can read it here.
So... what's it about?
A man buys an angel from a demon and then struggles to take care of it.