Due to negative feedback from the community, this route was closed in version 0.19 and will be reworked. You can unlock the scenes by downloading version 0.18, or wait until the route is reworked in future updates.
As I understand it, you’ve already found some of them by spending time with the characters. You can find the others in a similar way, but you’ll need to spend time with several of them in a row, and then they will appear.
I won’t say it directly, since the update has just been released. Maybe if you don’t figure it out by then, I’ll post it on Discord a bit later. But I’ll give you a hint: both the panty search and the problem with Yu can be helped by spending time with the residents of the house :)
If I say it with as few spoilers as possible—so other people won’t understand which girl this is about—I’ll put it like this:
In Season 1, if you played through her events, you could see that she was the one who asked the MC for it herself, because she enjoyed it. So what you called “just for one girl” doesn’t happen with everyone—it’s simply her personal fetish, since she likes being dominated.
The second season is a direct continuation of the first. It introduces completely new systems, and integrating it into the first season—or adding the first season into the second—would be problematic, so I decided to separate the games. As a result, the second season does not include the first one.
If you don’t give Oni permission, it will lock the Oni–MC–Emily route. As a result, there will be no lesbian scenes nor any threesome scenes with the MC involving these girls. You will still be able to continue their solo routes.
This does not affect the main storyline or the girls routes in any way, except that you won’t get the lesbian content and won’t be able to progress further in those specific events.
