Games made in rpg maker that aren't the usual rpg style are very close to my heart. Add some beautiful graphics and an excellent soundtrack, spiced with a very eerie story and you get Retelova (Scrambled elevator!)
I like how each demon has a different challenge for you, the only thing I'd suggest is I lost a lot during the sequence game because it didn't work with my mouse. I figured later I had to use the keyboard to play, so maybe disable the mouse? Other than that, it was a really nice experience! I'm sometimes wary of rpg maker games because they tend to feel repetitive or cookie cutter but this one definitely broke the mold. I hope you work more on the story and how these dreams (nightmares?!) are tied to the disappearances.
Really nice job!