Artist.
Japanese name: あづま煉 (Azuma Ren)
Circle name: 休憩所の東 (Kyuukeijo no Higashi)
https://www.pixiv.net/users/67073
https://www.pixiv.net/stacc/east
https://twitter.com/adumaren
https://twitter.com/intent/user?user_id=95059028
https://sketch.pixiv.net/@east
http://doujinshi.mugimugi.org/browse/author/42617/East/
http://theinterviews.jp/adumaren
http://twitpic.com/photos/adumaren
http://yfrog.com/user/adumaren/photos