JUC-854 - The nightmare that began 9 years ago with my daughter's friend

The title is bland and the actress is virtually unknown, so I didn't expect much, but the story is surprisingly well-crafted and worth watching. Natsuki doesn't have a flashy look; she feels like an ordinary young wife, which actually makes her more erotic. The way the man realizes her hidden lust and trains her body is great, though the electrician character felt unnecessary. The scenes where she lifts her skirt or heads outside based on the man's subtle cues are excellent. It would have been even better if they had depicted her dry sex life with her husband in more detail.