Eromangaka. He works together with Warabi Yuuzou in case of creating non-doujin eromangas.
Japanese name: コテング (Kotengu)
Circle & site name: テングコテング (Tengu-Kotengu)
https://www.pixiv.net/users/205445
https://www.pixiv.net/stacc/yu221109
https://twitter.com/kotenguchan
https://twitter.com/intent/user?user_id=86973867
https://kotengu.fanbox.cc
https://www.pixiv.net/fanbox/creator/205445
https://sketch.pixiv.net/@yu221109
https://www.tinami.com/creator/profile/11654
http://tengukotengu.blog.fc2.com
http://c10018144.circle.ms/cr/CircleHome.aspx
http://c10018144.circle.ms/oc/CircleProfile.aspx
https://nijie.info/members.php?id=2325
http://theinterviews.jp/kotengu
http://twitpic.com/photos/kotenguchan
http://yfrog.com/user/kotenguchan/photos
