I gave the game a shot and while the game has a nice base, I feel like there's a few things that can be improved on.
The Yandere girl doesn't have a unique sound to their footsteps.
Rooms are not labeled. I did watch your gameplay video and saw the map function. I would suggest putting in a one screen tutorial on the keybinds used in the game as well as labeling each classroom their assigned number.
The Yandere girl is incredibly fast. I would recommend either slowing her down, widening the hallways, or altering her ai so that if you spot her, she "retreats" and tries to stalk you again.
You have a really unique game here that just needs a bit more polish to make it shine.
Here's my channel for other games I have played. http://www.youtube.com/c/Levont