http://doujinshi.mugimugi.org/book/306884/

This is utterly misnamed and mistagged. Most likely caused by the database bug described in http://doujinshi.mugimugi.org/forum/index.php?IIID=1416. Uploader probably just crafted the title from the database info at the time. I still don't know where he got "artist:kazuki mako", since it's not printed on any of the pages and does not exist in the database. I can't confirm the author mentioned in the database either.

Base +12, ok69 +6

Despite the name being similar to a circle called BOTTAKURI CLUB, I think they are different circles, the old website of BOTTAKURI mentions the artist is born in the 80s, and this doujin was made in the 80s. Oldest convention mentioned on the website is from year 2000.

http://web.archive.org/web/20010702084047/http://blue.ribbon.to:80/~botta/shintop.htm
http://web.archive.org/web/20010727200105/http://www4.tkcity.net:80/~botta/Information.htm

At least this is a totally different artist we have here.

Base +58, TheGreyPanther +54

https://www.suruga-ya.jp/product/detail/ZHOU983

Base +33