I have a huge aversion to NTR content, I would never play this game if that kind of stuff was mandatory.
This game is one of the rarest form of optional NTR.
One where it does NOT turn the girls into whores on a leash who just want to cuck you all the time and you have to constantly stop it.
When the fat-rich NTR bastard goes after one of the girls.
She comes to you and asks you to help her ward him off.
You need to backstab her and push her into it out of your desire to be cuckolded.
Every time I see optional NTR in a game (other than this one), the MC needs to be proactively stopping it or else the girl will cuck you because cucking you is what she wants.
This game completely inverts that formula and requires you to be proactive about getting cucked.
And then as the cherry on top. When I obviously choose to NOT get cucked, I got to kill the NTR bastard. it was very satisfying