If I remember correctly the NTR in the game is Swinging/cuckholding(you have sex with a wife while husband watches) and Netori(you stealing someone else wife. husband usually is a dick) There isn't any Netorare where your loved ones are stolen from you.
No worries, There are three Main terms usually included under the umbrella of NTR(could be more smaller terms). Netorare being the most hated, Netori being the more accepted one, and Netorase(cucking/swinging) being on the hated scale as well. Most people just stamp the NTR term on if it contains any of these three types, which means sometimes you will pass over stuff with only netori in them just because it has the tag. So if you see the NTR tag for something don't be afraid to ask for clarification or you may just miss great things like this game.