@SuppeBargeld I'm aware that it was all from Juri's imagination, however it's clear that the author used Juri's imagination in chapter 26 to give the readers a preview of what the upcoming chapters would entail if they chose either the onsen or the amusement park. What was shown to the readers was a ride on the Ferris wheel with the couple together in one scenario, and two women in the nude relaxing in the onsen, with the husband returning with drinks afterwards, in the other scenario.
I'm not trying to argue with you or anything like that. I'm just saying that one of two things happened; either the author knew what he was doing putting both Juri and Mizuho in the imagined onsen scenario (He could've easily just made Juri imagine her bathing by herself to show that she wasn't going to be with her husband for most of the trip) and he pulled a bait and switch on
some of the readers who voted for the onsen, or he realized as the poll was being conducted that the main couple would be separated from each other for most of the arc and he pulled a last minute change to the proposed onsen arc.
Nothing wrong with either of the two, the author is more than free to do what he wants with his story regardless of fan polls, I'm just putting in my two cents.