Artist.
Japanese name: かるかん (Karukan), and various joke names
See also
- Pixiv account: http://www.pixiv.net/member.php?id=2361013
- Main twitter account: http://twitter.com/can_0515
- Twitpic account (1): http://twitpic.com/photos/can_0515
- Twitpic account (2): http://twitpic.com/photos/arukom