Artist.

Japanese name: 菅 裕二 (Kan Yuuji)
The other name: ゆうじかん (Yuuji Kan)

See also

• Pixiv account: http://www.pixiv.net/member.php?id=2843207
• Twitter account: http://twitter.com/yujiKan
• Twitpic account (server stopped): http://twitpic.com/photos/yujiKan