Ok so games that have swinging content are a bit of a guilty pleasure of mine, that said, very few dev's get it right and from what I've seen of the content available so far my hopes for this game aren't too high.
So what do I mean by that? Well one thing I noticed while playing the game is the ntr undertone, (to be fair the swinging undertone is there but was pretty much drowned out by the ntr undertone) your wife talking to you about wanting to sleep with other men. This in and of itself wouldn't normally be a red flag when you take into account this game is supposed to have swinging in it, but the way she says it seems to imply that MC isn't enough to satisfy her and that other men or the other male character Joro could.
Speaking of Joro it doesn't take you long to find out why your wife wants him, in a move that is typical of ntr games the dude has the cliche dick that practically goes down to his knees.
When compared to the MC's it becomes obvious that the MC's sex life is on borrowed time.
So what does all this mean for future updates to the game? That is up to the dev, though I get the feeling he/she is going to have to decide to either keep the ntr and scrap the swinging or do the reverse, because frankly the only way you would be able to do both would be to put the MC on an even playing field with Joro and right now that is simply not the case.
With all that being said I'll close out my review by saying I wish the dev luck and that if you're here for the ntr it looks like you'll get plenty of it in future updates.
If you're here for the swinging content my advice is to wait and see what the dev will do.