I'm really enjoying the game so far! I find the story and battle system engaging. I also really like the 4th wall breaking concept. I've made into the Caelum Sewers so far in the story. Not sure how much of the demo I have left, but I'm be excited to see where it goes!
I did notice one funny thing. It doesn't seem like the characters' stats and equipment are factoring into their attacks. My characters are all Level 12 and I've upgraded their equipment, but I noticed that they still do the same damage. I went back to the Shimmering Hollows and played through the prologue again just to be sure. I also tried unequipping eveyone's weapons. Instead, the damage seemed to be tied to their attack type. For example, Sword Thrust always seems to do 8 damage (16 critical) regardless of the characters' level or weapon. I wasn't sure if this is intentional as a part of balancing, since the enemies' HP aren't that high to begin with, but I wanted to point it out just in case it wasn't.
Otherwise, I think it's a great game and I really hope you'll be able to put out a finished version in the future! Thanks for putting the time and effort into making this!