Artist.

Japanese name: 琅虚 (reading is given as Rouko)
Site name: 七罪七福 (Shichizai Shichifuku)
Joint website name: "しんくれんごく":[http://blog.livedoor.jp/shinku_rengoku/] (shared with [[Eric flay]])
Old site names: 常闇遊休 and 禍ッ神
rouko605