Artist.
Japanese name: 沢谷とおる@例大祭 て-39a
Pixiv account: http://www.pixiv.net/member.php?id=210556
Blog: http://i2.pixiv.net/img14/img/sawatani/42431367.jpg
Twitter account: http://twitter.com/sawatanitoru
NicoVideo page: http://www.nicovideo.jp/user/5098435