The writing is very impressive. I think NVL style really suit the game. Love the atmosphere of the game. That scene with the coffin kind of caught me off-guard. The use of BG and BGM are suitable. I got chills here and there. Overall, it's a great game!
If you're playing in English, there are some typos. Also, the text during input name prompt and the default name are Russian. Not a big problem, though. One thing that is a bit distracting to me is the bright red sprite. Other than that, I wish before choices, like at the start of the game, there is a bit of narrative., text, or something that informs us what we are trying to do.