The Bridegroom is a story written by Oishi Maki and illustrated by Uehara Kazushi. It ran in Issue 57 at http://s2b2.livejournal.com/320463.html, and is mirrored at http://www.shousetsubangbang.com/mirror/the-bridegroom/.
From http://harmless-one.livejournal.com/41201.html: "The story is about a kingmaking priest who has put his lover on the throne, and is now struggling to keep him there."
With apologies to Hilary Mantel, Thomas Cromwell, and Wolf Hall--and with utmost thanks to Nextian and Gogol, my invaluable betas and givers of feedback during the fraught and tortuous process of making this happen. Special thanks also go to my beloved artist friend Uehara Kazushi, whose beautiful artwork graces the pages of this story. Thank you all.