Artist.
Japanese name: 鉄鶏 (テッケイ, Tekkei)
The other names: てっけー, "TEcKei", "teckei", てつにわとり (Tetsu Niwatori) and various joke names
Site name: クロガネケイジ!
https://www.pixiv.net/users/12173
https://www.pixiv.net/stacc/tek
https://twitter.com/intent/user?user_id=117127610
https://twitter.com/teckei
https://pawoo.net/@tek
https://pawoo.net/web/accounts/600380
https://sketch.pixiv.net/@tek
http://www.tinami.com/profile/140420
https://teckei212.tumblr.com
https://ask.fm/teckei
https://kuroganecage.blogspot.com
http://twpf.jp/teckei
https://twitter.com/krgnkg
http://theinterviews.jp/teckei
http://twitpic.com/photos/teckei