if this game had cg,this would be the best netorare game out there
Speak for yourself.
1) This IS the best RPG NTR game out there by light-years margin.
2) Changing DOT scenes to art/CG would only serve to deteriorate the game's quality.
Some generic art - which is literally everywhere whilst you can probably count decent NTR games with DOT scenes on the fingers - would alsmost totally be devoid of some special charm and immersion of seeing various DOT scenes happening at different times of week/day while you roam around.
I.e. to me it's kind of more immersive to see someone getting banged in the window of the 2nd floor, as this building becomes visible as you move your char around, instead of going to some marked area just to have a screen sized porn pic to pop up suddenly, with some dialogues and some pics changing one another after that.
And I don't know how to explain it exactly or if it qualifies as mystery NTR, but there is a a lot of cases where MC is oblivious cause he just can't see what is going on from his vantage point obviously but you on the other hand can from your birds eye view which is quite interesting and can be... stimulating. Probably the thing is that you can move your char around and see the world and people going about their business, while some scene which your MC cannot see but you can is happening during all that time - which can bring some special NTR sting/angst. Art or CG would just interrupt gameplay until the scene plays out.
I'm likely referring here mostly to freeroam events, but still. Even when the game pauses the gameplay to play out some scripted scenes with dialogues (or show them in reminiscence room), they still are being coherent with the rest of the game. Again, IMO there is some special immersion or charm can be found in being able to visit the very same places and rooms before/after the NTR sex scenes, literally walk in-game on the same floor where somebody got fucked.