Doujin circle. 

Circle name: あま屋あまあま (Amaya Ama-Ama)
Members: りゅたろ (Ryutaro), あまや (Amaya) (Not sure they're the same person)

h4.See also

* Home page (dead): http://amayasan.web.fc2.com/
* Blog (dead): http://amaya3.blog110.fc2.com/
* Ryutaro's pixiv account (empty): http://www.pixiv.net/member.php?id=84087
* Ryutaro's twitter account: http://twitter.com/ryutaro_bng
* Old twitpic account: http://twitpic.com/photos/ryutaro_amaya
* The Doujinshi & Manga Lexicon: http://doujinshi.mugimugi.org/browse/circle/21021/
amayasan