boushi_(nandemo)
Artist.
Japanese name: 帽子 (Boushi)
See also
* Pixiv account: http://www.pixiv.net/member.php?id=5261000
* Niconico account: http://www.nicovideo.jp/user/29982999
* Niconico Seiga: http://seiga.nicovideo.jp/user/illust/29982999?target=illust_all