Okay, I played it a bit for half hour and quickly realized that my expectations were too good to be true. My initial enthusiasm for the game idea was shattered right in the early stages of the game.
So the most important flaw is that characters are empty, the only meaningful conversation with them is only during the first introduction. And just a couple of lines next if you've gotten a little closer. How you suppose to feel NTR'ed if you feel nothing for them? As well as what kind of satisfaction you suppose to have by fucking those empty persons? Also, your main character is just a weak version of the villain, you as him, no matter what you answer in the beginning want to build harem. It doesn't matter if girls wants it or not, they don't have their own will, desires or anything.
The villain is just there, he doesn't have any appearance in the story, beside being some dude who can fuck your girls. Basically, it could've been any character, even a random drunk. There is no adequate development of relationships in the game, neither on the part of the main character nor on the part of the villain. The main character simply gives gifts (the stupidest and laziest system that the developers of adult games have come up with) and spends time with them, which is accompanied by a line of text. The villain, by some miracle, manages to seduce dozens of ladies during the break between fucking and immediately establish relations with them faster than the main character. Again, without any events, corruption, narration, etc.
You can even hire a childhood friend of the main character who, as other girls, will start with an opinion about you as "Acquaintance?" (with question mark, yes) to you. Guess who she will prefer first?
In general, the dialogues, even those that are there, are just boring and empty, there is no relationship development and no corruption. Sex scenes - 2 pictures per scene. The clearing of the dungeons is very simplified, some might like it - I don't. Too boring. There is no tactic, the main task to move on bypassing enemies and collecting on the way loot, every time you hit the enemy you lose stamina. If it drops to zero - the raid ends. Enemies run too fast, so it's very hard to avoid them, so you're just buying potions for stamina to survive longer.
Maybe you could say it's a game in early stages and it's yearly to judge the game. That's true, that's why I don't write the review and instead share my opinion in comments. But honestly, I doubt much will change. The things I'm talking about should have been an important element from the beginning. But here it is not, so for the developer something else was clearly in the first place.
My score is 2/5
+1 purely for the idea and pretty much normal outer character design and UI.