Artist.
Artist name: M@:RIO (reading is マリオ, Mario)
https://www.pixiv.net/users/4194287
https://www.pixiv.net/stacc/diabolic-mario1189
https://twitter.com/Mario7111189
https://twitter.com/intent/user?user_id=512047837
https://nijie.info/members.php?id=43992
https://mariopnn711.fanbox.cc
https://sketch.pixiv.net/@diabolic-mario1189
http://b.dlsite.net/RG28752/
