https://www.pixiv.net/users/200861
https://www.pixiv.net/stacc/yutakashii
https://twitter.com/yutakashii
https://twitter.com/intent/user?user_id=65243392
https://jhw63451.fanbox.cc
https://sketch.pixiv.net/@yutakashii
http://mixi.jp/show_profile.pl?id=2753428
https://www7b.biglobe.ne.jp/~koumi/
https://www.pixiv.net/stacc/kashii
http://p.twipple.jp/user/yutakashii
http://twitpic.com/photos/yutakashii
