This has to be one of my favorite VN.
Admittedly I am usually in for the lewds when it comes to this genre 😅, but here it is just a nice extra bonus, as the story itself is genuinely intriguing.
Both the art and writing is great, but I have to mention that the sound design complimenting everything beautifully, and often-wise the sound department where other (even otherwise good) VNs are usually lacking.