Darker is definitely netorase, husband knows, wife knows , both are ok, husband agreed to share...
there are some problem with this game ntrs fan may won't like, too much corruption , husband act and decide in most weird way, too far from realistic , weak relationship between husband and wife(almost no love!)
Ok so I played through it; glad I at least gave it a try it's certainly unique. I don't really know how to classify this game, I definitely wouldn't call it NTR because the husband comes off as an alpha fully on board with the plan, but I also wouldn't call it sharing because the wife is so uncomfortable it goes past the usual "make her more sexual to open up new experiences" - it's more similar to pure corruption and prostitution tags.
It's almost like some weird category of "reverse-ntr", in ntr you have the wife fucking around while the husband is miserable, but here it's easy to forecast the wife will be fucking around while the WIFE will be miserable and the husband fine with it, so yeah, weird. Hence I'd call it more prostitution/corruption.
I'll keep an eye on it as it seems interesting enough as a general game, but I still wouldn't call this sharing or swinging. Having said that I can't see non-ntr/ntrs players even being interested in this; so perhaps those here who like massive corruption/slutification will like it.
Me, I'm just biased towards romance stories, to quote Gavin Rossdale from 25 years ago (or Perry Farrell 30+); There's no sex in violence. Nothing's erotic about rape and nothing sexual about forcing a girl to act sexual.