Comic Market 82: Alpha to Yukaina Nakamatachi / 有葉と愉快な仲間たち

ALPHa found quite a good bit of pre-Comiket success with their Comic 1*6 release, the Papakiki! parody doujinshi Mama ni Nariatino!, regularly appearing on Toranoana's weekly top-ten sellers lists in the weeks leading up to Comic Market 82.

While I have not been able to find a decently sized stand-alone photo of their Comiket 82 release, the circle's website does feature the following large spread of all their offerings:

The ero book on the top left carries the English subtitle Twin Sister of Cousin Yui Takanashi--I'm guessing this is an offshoot of the Papakiki! universe but I have no living clue.  There's also a 4-koma non-hentai original work, a towel, and a decorative file to carry it all.

Updated 9/28/12

After a spot of research, it turns out I am completely wrong about Alpha's C82 release.  First, and perhaps most importantly, the circle did not release their ero book alone--the only option at the convention was to buy all of the circle's goods in one package.  I am also completely incorrect about the provenance of the ero book--it is an original work.  Alpha produces much more original work than parody work, and C82 was as such.