Artist: oka yuuichi

URL http://okayudou.com/
URL http://okayudou.blog46.fc2.com/
URL http://twitter.com/oka_yu_1
URL http://www18.atwiki.jp/sakuga/pages/64.html
URL http://www7.atwiki.jp/anime_wiki/pages/1370.html
URL http://anidb.net/perl-bin/animedb.pl?show=creator&creatorid=9087
URL http://www.animenewsnetwork.com/encyclopedia/people.php?id=41259
URL http://doujinshi.mugimugi.org/browse/author/79545/Oka-Yuuichi/
Aliases okayu, okyayu, おかゆ, 岡勇一