Honestly? this is one of the first game that actually made me get frightened in a comforting way if that makes sense. I played this without knowing it was a dating sim and I got the new friend ending in my first gameplay. Seeing him(?) (them? her? it?) made me scared just a little but I got used to them quickly, what really scared me and made me uncomfortable is the toilet having endless ceiling, the noises in the background and that especially that door that is slightly open, it made me feel really uneased, like my surroundings literally made me felt more uneased and scared than the monster itself. I kept checking the toilet, expecting something to happen like some kind of jumpscare or a creature or maybe somethink I can never guess but nothing happened and it made me feel a little paranoid, which it's good because none of the visual novel games I played made me feel like this.
The more I get to know the creature the more I get intested in them, and I can say that I relate to them a little lol. They being sensitive to the light, them getting in to the small spaces, them being sensitive to loud noise and them being intersted in to our (human's/people's) lives, as if if I was born as a monster I would be like this high properly. I could say that this is one of the best visual novel games I ever played and I'm looking foreword for the full game.