Before starting off, if you have thought even a bit that you want to play the game download it right away and play it, however if you want a review of this spoiler free I have a slightly detailed below, and below that my own experience as well as a thorough review of it albeit with some spoilers (I will Try to keep any Bias I have away, and try to view it as objectively as I can):
Overview Review:
Bugs: 4.9/5
This is a 4.9 due to have 1~2 bugs, however it's a 4.9 because it does not negatively affect the game in any way, and keeps the game to it's original purpose.
Art/Animations: 5/5
The art is visually appealing to the eyes, along with the animations in both erotic and casual being smooth, and detailed.
Sounds/Music: 5/5
Sounds like character voicing, gun effects to sword's are like what you'd expect them to sound and better. You can feel the emotion in it. The music relates to the specific theme you might be in making it better.
Gameplay Mechanics: 5/5
Very simple mechanics, dodge button, parry button, attacking in various ways movement. Mechanics aren't broken, and is used for it's purpose. Overall enjoyable.
Difficulty Level: Easy~Low Medium
The game isn't hard, has a mechanic where you could recover HP, break free from enemy constraints, as well as money system to make you stronger, if you use them, not even wisely the game is not too hard, however it is still strategic.
Story: 5/5
Although there isn't really an explicit story like visual novels, there is a component of it through fragments you can read, like notes throughout the game. Contributing backgrounds as well as other events, the story as well is great.
So this is the end of the slightly detailed Review, below Is the more detailed review of it:
Thourough Review:
Bugs: 4.9/5
This game seemingly has 2 bugs if you play it. One of the bugs makes it so you can't progress into one room of the many rooms you can enter in this game.
Through experience of playing the game it seems to be a room that gives a slight HP boost, however this does not affect the games experience even slightly, it might make you more bummed to not be able to play more, that's about it though.
The 2nd bug is from the store. if you buy 2 specific clothing consecutively, it seems to lower the price of the 3rd item, but if you don't do it in that order, the prices remain the same. This doesn't make the game worse or better, but you could leverage it to use less money.
Overall, there are almost no bugs, and these 2 bugs it does have do not make the game any less better.
Art/Animations: 5/5
The art like I said before is truly great and detailed. The regular mobs have defined characteristics of clothes, eyes, hair, to the bosses having their own defined character clothes and what not.
The Background itself is also nice, although for things like clouds it does repeat, it is typical and is still beautiful.
Animations are really smooth, no lag no unexplainable stops to it. It is both consistent as well as appealing. The erotic scenes are both in variety and quantity with different positions and angles.
Sounds/Music: 5/5
There isn't much character voicing, but the voice of our protagonist has emotion in it, and fits the character. The sounds the sword would have to ground impact, to even the gun effects are pleasing, action filled, and reverberating.
Then you have the music, depending on which area you are there are different themes, when you are outside, in the moonlight there is calming theme, to when you have a boss fight an urging "Beat IT" theme. Every theme is great to hear.
Gameplay Mechanics: 5/5
This game has simple mechanics which you can use uniquely. Rather since it is simple, after getting used to it you can implement your own ways to attack and use these mechanics.
This game of course has simple moving mechanics, jumping, attacking with your sword to using guns with different acquirable variations. You can also dodge in this game with it's unique usage of using bullets as a way to gain I-frames. By using these, defeating groups of enemies to single enemies are really nice, not going to enrage, but rather fun.
Other mechanics are like searching in treasure chests through the D key, to parrying mechanic where you can recover those bullets, as well as gain a boost to your attack power for 1 turn(very useful).
You also have mechanics where you can gain more max HP through specific hidden rooms, that you use another mechanic of the game, although not too prominent to find these areas, a nice, small touch.
There is also the erotic aspect, which like the gameplay is really great. If you've played games like Ayura Crisis, Eris Dysnomia, Succubus Affection, it's similar mechanics to that, more to succubus affection. Even with that the art is smooth, a turn on per se as well, contributing to it's own artwork it can stand on it's own.
Through this erotic aspect is another game mechanic, where you are able to recover HP by engaging in sexual acts.
Difficulty Level: Easy~Low Medium
This game is Not hard at all. It is rather simple to play. You can level up your character by increasing attack damages in the shop through money, make it more tanky by the same, as well as the HP recovering mechanic through sexual acts makes it simple.
However, you can make this game more difficult by not using those upgrades which I did, and if you don't it will forcibly make you rely on game mechanics like parrying which you wouldn't need to use if you upgrade your character like a maniac.
Story: 5/5
Now, the story here is unlike that of visual novels, not a story that is told to you through many words, but through a slight amount of words as well the gameplay itself. You are able to encounter little notes throughout the game which inform you of records of some ancient socity and the catastrophe brough along, as well as your own mission. Furthermore, throughout the game, you can see differences in scenery, to mobs, as well as possible horrors that happened, one of which you might question yourself on, and the ending might confirm what you thought.
The backgrounds as well as mobs, and slight obstacles are also a big way the story gets conveyed so pay attention to those. The records/notes you encounter throughout also hint at the backgrounds so pay attention, which I reccommend you do.
Overall, the story is really nice, albeit I'd say be prepared for the ending, makes you go WOAH, although if you payed attention the every detail you might've suspected it.
Should you play it?
Yes, absolutely. There might be some people that say it's not for you, but if you really can't stand walking or running or fighting in action games, which I doubt you can play.
Also, why not play it, fast download, and you can see it for yourself and delete it, although you definitely won't after downloading it.
That ends the Thorough Review, what do I think about this game?
I really love it, the review are my reasons why, but the ending makes me feel puzzled and melancholic.
Even then, I would still play this all over again.