Artist, illustrator.
Artist name: udk
Circle name: ＠bgrund (あぶぐるんど)
Site name: abgrund
Second nickname: 犀川四月 (reading is given as Saikawa Uduki/Uzuki)
Second site name: AISIROOP
https://www.pixiv.net/users/63996
https://www.pixiv.net/stacc/udk
https://twitter.com/abgrund_info
https://twitter.com/yusaberry
https://twitter.com/intent/user?user_id=185260300
https://twitter.com/intent/user?user_id=806114817056481281
https://abgrund.fanbox.cc
https://www.pixiv.net/fanbox/creator/63996
https://sketch.pixiv.net/@udk
https://www.tinami.com/creator/profile/21176
https://udk.tumblr.com
http://abgrund.sakura.ne.jp
https://portal.circle.ms/Circle/Index/10003729
https://www.melonbooks.co.jp/circle/index.php?circle_id=678
https://ec.toranoana.jp/tora_r/ec/cot/circle/LUPAd26P847MdE69d687/all/
https://www.dmm.co.jp/dc/doujin/-/list/=/article=maker/id=75368/
https://twitter.com/udk48
https://twitter.com/uuussaa
https://twitter.com/yusa48s
http://aisiroop.blog.fc2.com
http://sigwblog.blog.fc2.com
http://twitpic.com/photos/udk48
http://twitpic.com/photos/uuussaa
