This game was like the Ultimate Mushroom Pizza the MC makes during the final phase: average.
I believe the reason for this, as is the reason there is a noticeable split in reviews on it, is that while it is a mechanically solid H-game (if encroaching being uncomfortably linear), it is emotionally weak NTR game.
Beware spoiler-heavy, detailed thought-vomit.
What it does well is squeezing the most it can out of the RPGMaker engine and spritework to deliver scenes that convey pretty much what a CG would, if there was one. When author implies something happened someplace, you can see that by giving said place a single glance. When something is happening, there is enough attention to detail that you can see that. There will be some sort of spritework, animation, prop addition, or otherwise. For a game with absolutely no CGs, it does an impressive visual work.
The events themselves are what could be done with RPGmaker in 2014. We are not dealing with any cutting edge for the time technology and scripting here. If you imagine a standard event in a standard RPGMaker game that gets uploaded to this site, and replace the CGs with sprite animations, you'll have an exact idea of what to expect from this.
Plot, however, is where it all begins to fall apart at the seams. This might be a weird reminder this late into this review, but the game is called NTRPG, and the focus is on NTR. Supposedly.
However, with its pacing the game shoots itself in the knee. You are given roughly an hour of gameplay to familiarize yourself with the characters. Mind you, its gonna take you an hour not because there is an hour of interactions, but because the character moves at the pace of a dying snail (I cannot recommend using a Cheat Engine speedhack option enoug).
You are given no real insight into any of the characters. Please take note of this, as that will continue throughout the game. The romance, if you could call it that, between the main characters is, at most, vaguely hinted at in the prologue. This would be fine, if, as soon as you exit the prologue, the game didn't follow up the shot in the knee by shooting itself in the head with its pacing.
As soon as you get introduced to the (I suppose you could call him that) antagonist, the heroine gets fucked by him. In the kind of scene a normal NTR title would use for at least a middle-of-story reveal if not the grand finale, with happy moans and orgasms. And it all goes off the rails from there.
For a normal H-game this kind of scene would be totally fine, but for an NTR this is a death sentence, as the supposed feeling of loss gets dulled by the fact, that you are not really sure what you've lost (if anything).
For a short while afterwards the game cannot decide whether the heroine likes whats happening or not, but in such a vague way that it doesn't feel like it commits to one or the other and- oh, I guess the heroine is a slave to cock already. Oh and now the sister got instantly bred as soon as the second protagonist showed up, this time with literally no lampshading as to how it happened. It just happened and, oh- she's also a slut already. And actually the whole village is fucking. And the game is over.
I would go as far as to say, that there is no NTR in this game. While, yes, the people supposedly dear to the main protagonist are being taken away from him, but it happens in such an instant, sokuochi, manner, that it somewhat blindsides you as a player. And the events themselves escalate so rapidly, and to such an absurd degree, that you simply end up.... jaded. Leaving the player jaded is arguably the worst thing an NTR title could do.
None of the characters are ever actually explained. You NEVER get to learn why the supposedly epic dragonslayer hero is a scum he is. Or who the fuck is his friend. Or which ass do they pull the rest of the knights out of. Or if they even ARE who they claim to be. That guy you shoved to the side you apparently killed doing so? And the knight girl that was seconds ago happily gulping dragon slayer piss is now, pardon my pun, pissed off about it enough to also kill you? Huh? Who? What?
The story does a fine job of making itself look bigger than it is, but then stumbles into the grave of its own making where nothing gets explained and nothing makes sense anymore. You'd say a game about girls getting stolen and fucked doesn't need to make a whole lot of sense, but it does the 'girls getting stolen' part so badly (the 'girls being fucked' part is done mighty fine, make no mistake), that the brain in my head overtook the brain in my pants in directing my attention.
Overall it evens itself out to be just... average. The sex scenes themselves are good, even if they end up playing out less in the NTR and more in the voyeurism kind of setting. There are some quality of life features like the easily accessible guide on 'what the fuck do I do right now and what events are happening today', being able to go back to a specific game phase past the ending, being handed over the "Super Happy Ending" unlock requirements on a silver plate should you wish. There is no grind past prologue, unless you count watching events themselves as grind, with the sole exception of *once* getting the ingredients for that pizza I mentioned.
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But there is no NTR and no real character personality to be found. This is a voyeurism game posturing as NTR game. However, that being said, there is still plenty of game to be had. If you're curious enough to have read so far, give it a try. You might like it — plenty of others did.