I havent played this game in a long time, only to restart the game and find out you killed it with NTR? Why would you add such divisive content to a harem game, the exact opposite of the shitty cuck fetish? And then on top of that not even tag it? 

The only scene in over 200 CG scenes I'd even consider something like that is your own choice and only becomes NTR if you deliberately make the choice for it, and it's not even the main character that is getting betrayed. That scene and and all remotely similar events are easily avoidable by the choices before it.
And it's not like the rest of the game suddenly becomes any different, just because you dislike one scene.