My question was rhetorical, because as you point out, he blackmails her with the pics.
"if they fucks before the mc comes into the pic."
I'm guessing you don't understand my point. The whole, "It's NTR if you watch it, but it isn't NTR if you keep your head in the sand," IS NOT NTR.
Is some dude banging some rando Jane? Not NTR, whether you watch it or not.
Is some dude banging your wife? That IS NTR whether you are watching it or not.
Does the teacher stop sucking the pricipals cock the moment you look away? No, they keep going. But aparrently the Dev thinks the direction you're facing 100% determines whether it is NTR or not.
Watching the girl get molested by the principal isn't NTR either, because they aren't together yet. Despite the Dev's insistence that watching = NTR. Regardless how long you watch, the MC saves her from being raped. Then she and the MC start associating together. If the principal, or someone else, after he saves her tries to take her from the MC, then that would be NTR.
Did I like the game? Yes.
Is is anoying enough that I'm trying to determine NTR: are, oi, or ase? Then have the Dev say NTR is avoidable when what he really means that you can skip the voyering. Even the MC's love interest is fucking for 1K a pop. Where the is actual NTR, there is no way in hell it's avoidable. Why? Because NTR doesn't care if you're watching it or not, just like Facts don't care about your feelings.