An interesting little game. Put me in mind of those horror RPG Maker games, which is a good thing as those are cool.
Was only able to get Ending 1. Not sure if I missed something, or if there’s actually no other endings. (I did find the alternate route but it seemed to just be a looping dead end.)
The player character’s collisions with the environment felt a bit off. Making their hitbox smaller and just putting it at their feet would make it feel better and allow them to walk in front of the back walls, rather than hit their head on them.
In any case, overall good work!