I can't tell if this stuff is supposed to happen or not, but this game seems okay!
One thing I will say, is that the intro in the demo is a bit too open for what it is. The curious RPG player will feel like they're wasting their time exploring from playing through the intro, and likely decide to stop exploring entirely. There are cute world building things you did, such as the door that was made for the Berserker! That stuff is good! I did find myself moreso finding dead ends with nothing interesting in them, though. Haven't played after the Berserker fight and playing as the main protagonist, yet, but will probably do so when I load this up on a gb emulator!