This is an RPG in which a married couple that visits a hot spring gets NTRed.
The story begins from the husband’s point of view and finishes with a recollection of the wife’s point of view.
There is only one branching point at the end of the story.
There is a little exploration from the husband’s point of view, but it is basically a linear story.
(Starts as husband wants to show her wife off a bit, but everything goes wrong later on)