YUUTOUSEI TO HIMITSU NO OSHIGOTO

The overly serious Shimizu Azusa who is part of the public morals committee of her school suddenly inherits her father's store after his death. To her surprise it is not a simple bookstore but a sex store..! How will this highly disciplined but totally inexperienced girl manage to keep the business going? — Description from AniList community (anilist.co).