I've played this game for a while (since there was a second female character to play).
Bug report: The "don't wait for me" quest line is bugged, you find the note and the event doesn't trigger when you walk into the bedroom.
For anyone trying to get NTR content, if you've just spent 6 hours trying to progress and you're being forced into an eternal hell of cleaning the house and cunnilingus, watch tv with her a few times (click on the TV not her laying on the couch) and it'll finally trigger some of the other NTR content, as I said the "don't wait for me" note currently leads to no scene and no increase in stats. [v1.7f3]
Now an important side note: There's a disturbing lack of consent in this game that really needs to be addressed, some things can be easily avoided, (fem don't put on the pantyhose she gets), but some others turn a little creepy when there's no way out of them and it takes "favour" to avoid the event from happening and raising the stat which then makes those events pop up more frequently and become more egregious. Adding to that, options like removing cage requiring an initial 20 favour then an additional 10 because she emotionally blackmails you into keeping it on pile up when you're experiencing other bugs to the point where you're genuinely wishing there was an option to poison the dinner when she's made you cook for her 70 times and hasn't done anything you're hoping she'll do because she's stuck on a loop.
A really cool game, with a tonne of potential. A unique piece beyond anything in this genre, and an indie dev taking it all on his own to make a crazy amount of content. But seriously I really think this stuff needs to be addressed a bit before moving forward.