This spoiler-free review is based on my playthrough up to Episode 1, Part 3
If you just wanna know if it's worth playing, the answer is a resounding yes. It's a top of it's class game. It has great story, great cg/art and great sex scenes.
Now to get in the details, I'll split the review in sections:
Characters
They aren’t bland. Each character possesses a distinct personality, imbuing them with a sense of soul rather than merely appearing artificial.
CG/Art
Overall, it’s excellent. It effectively conveys the story. In certain instances, it’s actually flawless. Lighting is extremely important for this type of CG/Artstyle, and it's done magnificently; You can see it in the preview screenshots. The sex scene CG/Art is almost god tier, but lacks animations (I'll talk about that later in the review). My biggest complaint about the overall CG/Art is that in some places they lack detail, and enough to ruin the immersion.
text and UI
I'm just gonna mention the negative things: There are occasional mistakes in the writing, which is honestly quite disappointing for a game of this caliber. There's a super annoying dark vignette at the bottom of the screen at all times and disappears temporarily solely if I press H or the mouse wheel. Doesn't have an option to hide quick settings.
Music
It's amazing, and it positively contributes to the overall immersion.
Story
For an adult vn, which often have bad, average, and/or bland stories, this one is actually decent. The dialogue is great and soulful. The humour is above average and actually funny sometimes. I never felt the need to rush through the story just to reach the sex stuff. It’s an overall enjoyable experience. Definitely better than 95% of the adult vn out there. I'm glad that there are dialogues I can skip, otherwise I would find reading unwanted content quite tedious. There was a major sex scene, and it's one of the best I've seen; That shit was super hype and well made. The story actually builds great anticipation towards the sex content, and it doesn't disappoint once it gets there. It actually exceeds expectations.
The dev mentioned on the f95 game page that animations are planned for future updates, but he wants them all be custom made because the koikatsu animations have already been seen by everyone in other games. I'm all for this. This game already has almost god tier sex scenes, so if animations are gonna be added, it has to be done right otherwise the viewer's imaginative expectations will be ruined and the overall quality of the game will plummet.
Honestly, I'm just super excited for the future of this game. Great job dev