Souryo to Majiwaru Shikiyoku no Yoru ni

Summary

The story begins when a woman reunites with her first love at a class reunion. She discovers that Kujou has taken over his family's temple as a priest. The woman thought that priests did not have romantic relationships, but a passion ignites between the two. She wonders if what she and the priest do is really right.

(Source: Anime News Network)