Artist. Formerly tagged as ryu56.
Japanese name: 神沢 零司 (Kamizawa Reizi)
(Danbooru's official romanization of 零司 is "Reiji". But Kamizawa does not want this pen-name to be spelled that way)
Circle name: "SARK" (サーク) or "SARK-um" (サークユーエム)
Site name: アルティマニア
https://www.pixiv.net/users/2224008
https://www.pixiv.net/stacc/ryu56
https://twitter.com/K_Reizi
https://twitter.com/makoto_hd_bot
https://twitter.com/intent/user?user_id=1420217172
https://twitter.com/intent/user?user_id=203106281
https://sketch.pixiv.net/@ryu56
http://c10025187.circle.ms/oc/CircleProfile.aspx
http://c10056875.circle.ms/oc/CircleProfile.aspx
http://twitpic.com/photos/k_reizi
