Very interesting game! The isometric perspective was cool, and the entire game had a great spooky aesthetic that I enjoyed! It was very engaging and tense throughout. I wasn't even sure if the enemies could actually hurt me, but they were ominous enough that I wanted to avoid them anyway. I also thought the whole UI was very cool!
The story seemed interesting, though I'm not sure if I understood it at the end. It also seemed more sci-fi than magical girl, but it's possible that my choices effected that.
The game ran a little slow on my PC, though not so slow as to make it too hard to play... but the lag seemed to get worse the further I got. My only other critique would be that I found the controls fairly difficult. I'm not sure why, but my mind consistently had the horizontal and vertical movement reversed... so I'd press a key expecting to go one way, but then go in a different direction. I managed to get semi-used to it, but made mistake all the way to the end.
Overall, impressive work! I really liked the atmosphere, it's rare that a jam game feels so immersive for me. I hope you keep working on this!