https://www.pixiv.net/users/1979498
https://www.pixiv.net/stacc/helvetica0302
https://twitter.com/yukio_takano
https://twitter.com/intent/user?user_id=729685078058491904
https://sketch.pixiv.net/@helvetica0302
https://skeb.jp/@yukio_takano
http://acloid.web.fc2.com
https://www.pixiv.net/stacc/takanosuna
https://twitter.com/sunamoe
https://twitter.com/intent/user?user_id=701578200124534789
http://twitpic.com/photos/sunamoe
http://yfrog.com/user/sunamoe/photos
