This is a special doujinshi written by hentai specialist, Mr. Kimirito. Some of you may have known him at the Hentai Fest panel, "The Hentai Trends in Japan." He has written and independently published EroManga no Genba (The Pornographic Comics Scene), which contains interviews with various people involved in the industry. The series, which started in 2009 and concluded in 2014, is an invaluable resource for researchers.