Disquieting story, wonderful custom art (especially those enemies!), lots of creative eventing as well, and a sweet combination mechanic in battle. Game went on a bit long, I'm thinking for a 1 hour jam, a floor or two could be cut, a few rooms, maybe tighten up dialog to communicate what you want as fast as possible.
A little polish on the effekseer animations during combat would help, like getting them placed in the right spot (projectile plugin maybe?), and speeding them up or removing that cast animation altogether. I was a little less inclined to combine novel things because I was too impatient waiting for my turn to come around when it failed.
Amazing that you made such a well thought out story with custom graphics, were able to wrap up the story, and avoided the sort of game crashing bugs that I've seen in a lot of other entries. Very worthwhile entry!