Artist.

Japanese name: 炭酸男 (Tansan Otoko) (reading is a best guess)
The other name: 炭酸 (Tansan)

h4.See also

* Pixiv account: http://www.pixiv.net/member.php?id=82604
* Drawr account: http://drawr.net/takahei73
* Niconico account: http://www.nicovideo.jp/user/577436
* Niconico commons: http://commons.nicovideo.jp/user/353242
* Blog (dead): http://pixiv.cc/takahei73/

tansan otoko