Hiya! I'd like to start off by saying that I enjoyed playing through the demo, it was fun to read and watch the events unfold. The story had me guessing most of the way through, some of my predictions were correct but some things caught me by surprise which was quite nice.
The art style is very nice, bright and colorful which is a nice contrast given the pretty dark story. I also liked the music that you used in the game and that it changed for each day, kept things fresh...especially on the final day.
If the demo is any indication as to where the game is going then I imagine it will turn out very well. I look forward to seeing some new characters added and the directions in which their stories will go.
I hope you don't mind, but I recorded a let's play of the demo for my youtube channel.
Cheers and best wishes to you!