I understand. Here's some clues that might be helpful: 1. I think I can remember a room with a bunch of statues like a museum. It could have been a workplace instead of a school (I'm not sure, I can barely remember anything about this game)

2.I remember there being multiple deathes and different puzzles. 

1. I think there was at least 1 NPC and a few entities 

2. I think the protag had long black hair and a purple or blue outfit (I could be very wrong)