Artist.
Belongs to the Dai Ninja Teikoku (大忍者帝国) circle (formerly called Dai Taiwan Teikoku 大台湾帝国).
Also seems to belong to the Moe Shoujo Ryouiki 萌少女領域 circle.
Pixiv - http://www.pixiv.net/member.php?id=3620638
Dai Ninja Teikoku circle site - http://daininja.blog.shinobi.jp/
Dai Taiwan Teikoku circle site - http://daitaiwan.blog.fc2.com/
Moe Shoujo Ryouiki circle site - http://moeryou.blog37.fc2.com/