Writing: 6/10
Imagery: 7/10
Gameplay: 6/10
Kinks: 7/10
Overall: 7/10
This wife is easier than 1 + 2.
Pretty sure she lived a sheltered life away from corruption and evil, and only is not experiencing the true depravity of society thanks to the hero. Which both lends to the kinks, but also kills the NTR. Because while the wife is the biggest pushover into making her do, well, anything the hero wants her to do, by the same stretch it is also because of this she doesn't come across as being corrupted. Her head is empty, so it is impossible to fill it with anything besides fluff and butterflies.
That said, dragging her around town to molest her in front of people, fuck her behind her husband's back, getting blowjobs while clearing dungeons, and watching her sister apply a curse to her that makes her lewder is super fun. Honestly, if not for that curse, wifey here might have not have done much more than jerk the hero's gerkin. Which you might think defeats my previous statement that nothing sticks to this empty headed bimbo, but the curse only makes her lewder, not corrupted.
I do think that the husband needed a route too, like, you can play him to walk around the town and unknowingly witness the wife being used like a bicycle. Depending on on lewd the sister has made her, he can see different levels of her acts. For example, early on, you might come across seeing her through the tavern window, disappearing behind the bench the hero is on, thinking "oh, my clumsy wife, I love her" while the truth is she's sucking the hero off out of sight. Or later on you can see someone who looks like the wife behind railed just out of identifiable sight, the husband thinking "boy, I wish my wife was as lewd as her." This kind of stuff. As it stands right now, the husband is totally oblivious to the fact his wife has more dicks in her than times he has dicked her himself. Which I'm good with, but I enjoy it even more when the husband is being tricked or misunderstands the situation in a positive light.
Overall the sex scenes are hot and fun, the wife's outfits are very nice, and the dungeon exploration is a tad bit annoying.