This is the first example of mangaka who were not affiliated with ero gekiga publications, but at some point drew stories for them or are otherwise associated with the genre.
The story sampled below, called 姦楽の舘, was featured in the 1983/7 issue of Manga Love Call and is credited to 亜央城森 (AO Jômori? – not sure about the pronunciation). I can't prove it, but judging from the art it seems all but obvious that this is a pen name for the late SUGIURA Hinako (杉浦日向子), who was famous for drawing Edo-period tales in a style adopting techniques used in the art of ukiyo-e.
The story was reprinted in an anthology called Kannô gekiga daizenshô (官能劇画大全書), published by Softmagic in 2002 and now, sadly, out of print.
Note that the censorship is as in the original publication.