https://www.pixiv.net/users/1556896
https://www.pixiv.net/stacc/takahashiyusuke
https://twitter.com/takahashi_you
https://twitter.com/intent/user?user_id=155884309
https://nijie.info/members.php?id=1195
https://sketch.pixiv.net/@takahashiyusuke
https://twitter.com/hoshi3ma
http://twitpic.com/photos/takahashi_you
