There's really not much to the fandom right now, but in the meanwhile, I've contacted the people who run nfiction
to open a fanfiction category for Onmyou Taisenki. They've followed through, so now you can view a few fics at
nfiction's Onmyou Taisenki section
. I'm working on something, but it'll be a long time before I can submit anything. ^^; Enjoy the fics!