At first the game will seem promising as you've seen the art. The classic foxgirl and catgirl you see in most other fantasy porn stuff. That alone would give it 5 stars with this superb art style. Especially with the premise of avoidable NTR and vanilla romance.
The execution however is far too flawed. The NTR content in this game is good and bad. Mostly due to being locked behind losing battles and specific requirements.
Exacerbating that issue is you'll be slogging through insanely tanky bosses should you try to be keeping your girls pure. The final boss is the worst example of this. The amount of health he has is insane, even with an edited save with max stats, he WILL take a while to kill.
Not to mention stuff like Pregnancy is completely locked behind the NTR options. There is no vanilla impregnation, even if you go Harem route and love both girls, they can only get pregnant by others, i.e from whoring and rape.
The NTR/Vanilla treatment here is not equal. Which really pisses me off personally. Why cut the MC out of the impregnation? Other NTR-avoidable games, like Nampa Beach and Sana, motherfucking Sana which is also an NTR heavy game, at least gave that much.
On the opposite side of the spectrum, the vanilla content is far far FAR too deep in the game to be considered good placement. You can get blowjobs and masturbation... that's it. Until you've reached the 6th or 7th town, YOU DO NOT GET ANY NEW VANILLA CONTENT AT ALL AND ARE NEAR THE GAME'S END.
The bulk of the game's content is in its game over rapes and night whoring as well as events around towns. And they make up the majority of the early to mid content if you ever want to see any new content in a playthrough.
Be that as it may, it has some good vanilla content, late in the game as it is, the number of it is also somewhat surprising in proportion to the NTR content totaling 18 out of the 60 gallery CGs (though two have unsatisfactory sex with MC, so NTR by implication).
I say this is surprising, because most other games with NTR either have one, or even no scenes where the MC gets to bang. And when they do bang, the MC has a tiny dick. Here at least the MC has size on par with the villains.
It's very likely that you will like the vanilla route quite a bit, especially the harem ending. The same can be said of the NTR content if you can get over the slog of obtaining them.
Overall, the best suggestion is, use a full save. At the snail pace this game goes through playing through it normally, it's better off that way. The game's worth a shot at the very least because it's being carried by the crazy good art that it has.