Hey, so let me start off by saying that I'm a fan of this developer's previous work, Gregore, even though the two projects have pretty much nothing in common, I just wanted to mention that.
First off, the art style. I really like it, I think it's good, but it could've been explored more. We only saw little glimpses of the outside world through the windows but I can't help but feel that the game could have benefitted greatly if the intro was us walking to our home instead of just spawning in a hallway because from what I've seen, the red-white-black aesthetic definitely looks good when looking outside.
For gameplay mechanics, I suppose there isn't much to say since this is more like a walking simulator, and it plays well for what it is.
The sound design. My, my. The fact that the game is SO SILENT with the exception of a few occasions is such a great idea and I was scared shitless playing the game. I had to alt+tab and take a breather every minute or so.
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The monster's design is absolutely amazing. Especially at the end when we can get a better look up close and that weird tall body of theirs is in a school girl uniform. It was absolutely horrifying. It also didn't help that the ending is oddly familiar to a nightmare that I've occasionally been having for more than a decade.
All in all, I can see that this is more like a small project that relies more on visuals and sound design rather than gameplay, and I really really like what you guys did. Well done!