Artist, eromangaka. Formerly tagged as u-ma.
Pen-name: 有間乃 ユウキ (reading is given as Yuumano Yuuki)
The other name: ユウキ (Yuuki)
Circle name: 屑乃葉 ("Kuzu no Ha" or "Kuzunoha")
Site name: 屑乃葉厨房裏冷蔵庫
https://www.pixiv.net/users/9470
https://www.pixiv.net/stacc/u-ma
https://twitter.com/Yuuki_Yuma
https://twitter.com/intent/user?user_id=112714537
https://fantia.jp/fanclubs/32058
https://nijie.info/members.php?id=1142
https://pawoo.net/@u_ma
https://pawoo.net/web/accounts/140004
https://sketch.pixiv.net/@u-ma
https://yuuki-yuma.tumblr.com
https://ask.fm/yuuki_yuma
http://c10010667.circle.ms/oc/CircleProfile.aspx
http://c10036351.circle.ms/oc/CircleProfile.aspx
http://www.dlsite.com/ecchi-eng/circle/profile/=/maker_id/RG14357.html
http://www.dlsite.com/maniax/circle/profile/=/maker_id/RG14357.html
http://b.dlsite.net/RG14357/
http://plus.google.com/118092573983408216030/posts
http://p.twipple.jp/user/yuuki_yuma
http://twitpic.com/photos/yuuki_yuma
http://yfrog.com/user/yuuki_yuma/photos
