Artist, illustrator. Currently he uses the name しーあーる rather than C.R for the convenience of searching.
Artist name: しーあーる ("C.R", pronounced as "Shii Aaru")
Circle & site name: C.R's NEST
https://www.pixiv.net/users/125757
https://www.pixiv.net/stacc/crsnest200312
https://twitter.com/crsnest
https://twitter.com/intent/user?user_id=32848741
https://nijie.info/members.php?id=2200
https://pawoo.net/@crsnest200312
https://pawoo.net/web/accounts/574652
https://crsnest.fanbox.cc
https://sketch.pixiv.net/@crsnest200312
http://mixi.jp/show_friend.pl?id=3210752
http://photo.mixi.jp/home.pl?owner_id=3210752
http://c10010242.circle.ms/oc/CircleProfile.aspx
http://c10038457.circle.ms/oc/CircleProfile.aspx
http://www.dlsite.com/ecchi-eng/circle/profile/=/maker_id/RG08378.html
http://www.dlsite.com/maniax/circle/profile/=/maker_id/RG08378.html
http://b.dlsite.net/RG08378/
http://doujinshi.mugimugi.org/browse/author/7397/
http://www17.ocn.ne.jp/~crsnest/
http://pixiv.cc/crsnest200312
http://p.twipple.jp/user/crsnest
http://twitpic.com/photos/crsnest
http://yfrog.com/user/crsnest/photos
