Yeah I don't get it. My understand is NTR is where you as the MC have someone taken without your consent or desire, basically if you're a male MC and your wife/gf whatever is cheating on you or fucking others. If you're the MC and going around shagging others with or without their "consent" or knowledge is not NTR. Not trying to talk shit or cause and argument, that just how I understand it.
To me this is all just hotwifing and cucking the husband.
I've realised through these games I'm really not a fan of NTR or hot-wifing, but i really love female mc's cheating on their male partners. I realise that this is probably not the best for me as it's mainly hot-wifing, but I've played it by ignoring the husband as much as possible and only have the bare minimum contact and interaction to advance the plot.