Artist. Formerly tagged as sanada (pixiv).
Japanese name: 真田 or さなだ (Sanada)
Circle name: TEKETO
Site name: endless stop
https://www.pixiv.net/users/157867
https://www.pixiv.net/stacc/umedapiyo
https://twitter.com/nyannyan123
https://twitter.com/intent/user?user_id=773385640813658113
https://pawoo.net/@nyannyanccc
https://pawoo.net/web/accounts/35068
https://sketch.pixiv.net/@umedapiyo
http://sanadajyun.blog.fc2.com
http://sanada.web.infoseek.co.jp/f011/index.html
https://www.pixiv.net/stacc/sanadajyun
https://twitter.com/nyannyanccc
https://twitter.com/intent/user?user_id=410719929
http://twitpic.com/photos/nyannyan123
http://twitpic.com/photos/nyannyanccc