[Spoilers ahead for the very end of Rahi's story, for anyone reading this]
I really, really hate that in Rahi's story, you're forced to choose between enslaving her and marrying her. I don't really like either option at all--Being a slave-master feels awful to me, and I prefer the dynamic of two dedicated friends having casual sex without romantic subtext. I don't mind that these options are there for the people that want them, but what really gets me is that the game forces the decision on me. At every other point in the game, if I encountered something that gave me The Ick™, I always had the option to just... Not Do That. But for this specific thing, the game turns to me, the player, and says, "If you want to complete Rahi's story, you must do one of these two options." And for me, that really sucks. I'd just like to see some kind of "stay friends" option, where you and Rahi just keep doing things as you were before. Maybe there could even be a scene where she and the player, platonically, talk about the journey they've gone through.
I really do like this game! The gameplay is enjoyable, the writing's not half bad, and it has a good balance of smut versus gameplay, something I've seen a lot of porn games struggle with. But for me, this moment in particular really sours the rest of this otherwise great game.