Artist who has two doujin solo circles.
Artist name: 44 or 四四 (reading is given as よし, Yoshi)
Fanfic-themed circle: CrossMind
Original-themed: sec44
https://www.pixiv.net/users/5741
https://www.pixiv.net/stacc/yoshi
https://twitter.com/44yoooo
https://twitter.com/intent/user?user_id=15944963
https://nijie.info/members.php?id=584
https://pawoo.net/@44yoooo
https://pawoo.net/web/accounts/8914
https://pawoo.net/web/accounts/21567
https://pawoo.net/web/accounts/582117
https://fan44plus.fanbox.cc
https://www.pixiv.net/fanbox/creator/5741
https://sketch.pixiv.net/@yoshi
https://www.tinami.com/creator/profile/2997
https://misskey.art/@44yoooo
https://misskey.art/users/9bh0hxia0y
http://blog.livedoor.jp/sec44/
http://crossmind.sakura.ne.jp
http://amzn.asia/9A5aQDy
http://c10003273.circle.ms/oc/CircleProfile.aspx
http://c10003274.circle.ms/oc/CircleProfile.aspx
http://c10037927.circle.ms/oc/CircleProfile.aspx
http://www.dlsite.com/ecchi-eng/circle/profile/=/maker_id/RG07686.html
http://www.dlsite.com/maniax/circle/profile/=/maker_id/RG07686.html
http://b.dlsite.net/RG07686/
http://imagis.jp/user/3956
https://mstdn.monappy.jp/@44plus
https://mstdn.jp/@44yoooo
http://twitpic.com/photos/44yoooo