This is truly impressive for a month's worth of work! Such nice art, great writing, and compelling story!! Your game is absolutely amazing!
I am not into VNs, but yours was of great quality and there were a lot of choices to make, which kept me interested. Not sure if the choices I made had an effect on the (terrible) ending I got, but you definitely have all the groundwork laid out for a branching story with lots of different routes. I must say I look forward to the finished product!
I don't have much feedback for future development. It's all nitpicking anyway and it's probably known issues for you, but here it goes:
- Maybe a save/load function would help? (if there is one, I couldn't find it). Even though it's a demo, the game is relatively long. Players may want to save progress in case they need to interrupt their playthrough.
- Some of the buttons feel a little clunky, as if you had to click near the very center of the button for it to work.
- Combining the idea of a mystery game with a management side sounds like a winner! Right now, the management part feels a little undercooked, but I understand you will further flesh it out in the future, so I was fine with it.
Anyway, I wish you the best of luck with your game. Thanks very much for a fun experience!