AU with Humans and Demons Hiding from the Initiative Underground

[rebcake.livejournal.com]

Due to some magical interference — perhaps a vengeance wish — Buffy finds herself in a world where the Initiative won. She hooks up with the putative Resistance, who are literally hiding underground in a warren of little rooms. The humans and demons have had to find a way to cooperate, sometimes in a blood for protection arrangement. She finds Joyce still alive and shacked up with Fyarl!Giles, I think.

As usual, title and author unknown. It might or might not be Spuffy. So far, I've only been able to find things that it's not, like cousinjean's "Perfect World", and icemink's "Possession". It's also not Anna S's "Season Noir". Do any of you know what it is?