I found the demo really nice! I wish we could explore more of the dream world, the map where we fought the bandits looked good! The story is kind of touching too.. to be able to connect in dreams with other people' souls.. really interesting. I was surprised by the visual novel aspect, I'm not used to rpgmaker being used for vns yet.. lol But if you may consider my suggestion, you could add some sort of selectable choices in those parts, during 'the story mode', while giving rewards that could add to our stats in the dream world for example.
The battle system wasn't anything special in my eyes, but it wasn't too bad and I thought it was pretty well balanced. I did think a few times that the monsters in the field were a bit too fast! haha I could never run from them, I just gave up and instead would wait for them to get to me and fight. XD
I found a few typos here and there (when they get to the village "and at the same time and old man"), you gotta be careful with punctuation too.
Pressing f12 brings you back to the beach where you first start instead of restarting the game?
I also noticed that even when monster are in frozen state they still attack, is it suppose to be like that?
Overall: It was a solid demo! It looks promising! I hope I'll be able to enjoy a more extended demo or the full game soon! :P Good luck and keep it up!