Ao no Tatsuki

Edo's largest recreation area, Yoshiwara. In this town where the feelings of the living and the dead are swirling, Ao, a prodigy prostitute who was lost in an unknown shrine. It was a "village of shrines" (Shenchoku Shrine) between Ukiyo (The Floating World a.k.a. Yoshiwara) and Sakai (Borderland) that only those who are strongly seeking the benefits of spiritual trials can reach! Only prostitutes who have a beautiful and sad past are visiting the company. In order to guide and save the soul... Along with Yakumaru of Miyaji, Ao will unravel their lives!

(Source: Manga Box, translated)