[START-164] A young, beautiful innkeeper, Yotsuha Kominato, repeatedly seduces solo guests, couples, and married men on hot spring trips, engaging in adultery sex within the inn.

This is so interesting.

Read it subtitled. (So many JAVs get subtitles now out there on the net)

The site that had subbed it had this description

Her husband died two years ago, and she started working as a bathhouse girl to help repair the inn he loved. One day she had sex with the husband of a couple staying at the inn and could not forget the pleasure, so the next day she began cuckolding the partners of the visitors. She provides oral service to a young man who likes mountain climbing, a special service of cuckolding sex to the husband of a young couple, a man with a girlfriend who cannot resist the landlady’s charms and has sex with her, and a foursome surrounded by tourists.

I think that was taken from the written things on screen as the movie plays. That all pretty well corresponds with what I read on my cell-phone pointing the translate camera at the writing on the screen when it appeared.