Guys, holy shit. At first I thought some of the people posting were just being intentionally obtuse, but it seems not. Hopefully this is the last I'll say on the matter.
All the discussions that have been happening around here about "X-Y-Z is NTR" vs "no, W-K-X is NTR, not X-Y-Z" is baffling.
Honestly it just proves my original point when I complimented the dev for how he clarified the way the tags present in the game's OP would be applied in the storyline (and to be crystal clear here, before this somehow becomes another discussion due to people being obtuse, THERE IS NO NTR IN DROPOUT SAGA. OK?! Ok.).
Quite simply, as you all (unintentionally) put it so well, different people think about these tags in different ways, so clarifying how the tags will be applied in the story is a great idea.
For me PERSONALLY, so long as the content in the game causes me (the player) the feelings I get when NTR happens, I will want to stay away, even if there is no NTR present at all. (A House in the Rift is a personal example for ME. No NTR happens and probably none of it ever will in there, and yet I do not want to play that anymore because of the disconnect I felt with some of the characters. Other people love it to death though, and that's okay).
So really, going into the technicalities of "if a LI is cheating is NTR fullstop" vs "It's only NTR if the MC sees/finds out it is/was happening WHILE being in a relationship with the MC" is pointless.
Yes, the character will feel different things than the player, because as much as players try to self-insert into most MCs, sometimes the way the game is done make it so that how the MC views and react to things is completely different to how a player of that game will feel in regards to the situation being presented.
Which goes back to my original point: the dev articulates his written communication very well, and I wish other devs did that too. These discussions that have appeared as of late showed, however, that some people will be obtuse no matter how clear one tries to convey information.
*sigh*
In my original post, instead of using NTR, I should have used any other tags as examples. That's all it was meant to be. This is tiring.