In terms of NTR.
Erm... I kinda think if you worry too much about NTR, the game might not be for you.
The game starts off with an NTR scene. (Wife cheats on MC). They promptly divorce and then he is single.
In the game a lot of people have sex, with their boyfriends. There is a lot of cheating, as well.
But technically the MC is single, so it's not really NTR. Also, there are currently only 2 girls that are presented as possible LI.
The one is a prostitute, so I mean...there is that. And the other one still has a BF, so they still have sex.
You can of course skip all sex scenes, but it still happens.
So TLDR, after the divorce, no one cheats on the MC.