I believe everyone here on this site understands the true meaning of NTR. The real.
However, for this specific site, there is a TAG system (I would even say very limited) and NTR is one of them, and I also believe that many who come to discuss whether or not NTR (on this site) have never read the post where there are all the explanations for each TAG.
So I'll save some work. NTR [Designed to cause jealousy for having a romantic interest involved with someone other than the MC.]
And if you pay close attention to the part of "LI involved with someone other than the MC" you will understand that people who don't like this NTR don't like to see LI with other people, it's no use saying that the MC is not related to it , that she's with her boyfriend, or that he hasn't met, see from the player's view, like, often the player sees and knows things that the MC doesn't see, and who will make the choices is the MC's contrarian player, so to say that the MC didn't have "feelings yet" or that "wasn't related" or "doesn't know it happened" is complete idiocy.
Making this clear, I want to say to the DEV that you are to be congratulated, not for the game itself, I haven't played it yet, but for the fact that you understand your players' opinions or possible players. Now I'm going to play with your game, as I hate NTR(in the real meaning and meaning of the site) and the fact that it's completely avoidable made it possible. So congratulations and I wish you success.