This game is unironically one of the best feel-good stories I've ever read. If this was just a pure romance (no 18+ stuff) I'd still love it. K7 just seems to have a way with writing incredibly comfy relationships without a lot of the bullshit you see in other games/stories. Some people might see the lack of drama or conflict as a bad thing, but this game basically exists so that no matter where you are in the game, no matter how you're feeling before you start playing, play for long enough and you'll end up with a smile on your face. I say "play for long enough" cos there are some sad moments (and even a few moments of minor conflict looking at you, Eliane) but overall everything is almost sickeningly wholesome. Even some of the "worst" girls (or at least the ones that are presented as bad initially (again, looking at you, Elaine) end up being absolute sweethearts once you get to know them (or once you get through to them (Fiona, Tanja)).
I've played this game all the way through far too many times now (usually at least twice/update). I genuinely can't think of a more ideal game as far as describing my taste in games here (which is interesting considering that the game's primary kink, incest, does nothing for me).
This comment wasn't meant to turn into my (far overdue) review for this game, but fuck it, that's what it is now.