Really great stuff. I loved the writing, some great humour mixed in made it very entertaining and the characters were well written and interesting to get to know. The soundtrack was awesome too.
I also admired how much extra detail you put into NPC and environmental descriptions and dialogue, that's always a huge bonus for me personally with RPG Maker games. I especially liked the Senior Prank quest, already knew the right characters for several of the roles just from talking with them before, hah.
I did think you were joking about the long playtime but when I had only just reached the end of day two and nothing even remotely horrifying had happened yet at around 2 and a half hours I knew that definitely wasn't the case, heh. All in all, excellent work and well worth playing for any RPG Maker horror fans. Nice job!