Artist.
Judging from "his old tweet,":http://twitter.com/hesuke_74/status/241764656685932544 this artist tag on danbooru may mistakenly contain another artist's works.

Nickname: "Hēsuke" or へすけ (Hesuke)

h4.See also

* Pixiv account: http://www.pixiv.net/member.php?id=1964415
* Twitter account: http://twitter.com/hesuke_74
* Twitpic account: http://twitpic.com/photos/hesuke_74

hesuke