I read up to 9 in Chinese. It was an interesting story at the beginning, but after half a dozen chapters it was getting boring, no matter how different each clients are. The manga is complete with 19 chapters, but I do not feel like buying it. There are quite a few Lesbian Brothel theme mangas, with Asumi chan being the more popular one.
Each chapter is an arc. So it actually is OK to skip. The background story of everyone is pretty good, but wish it could be deeper. By volume 4 it showed how Ryou, a delinquent, met Kei, and that was how Ryou started to work in the industry.
I'll say this manga is "meh".