The demo was great, with things that I both liked and disliked. The BG music, art style, story and the characters are great. I really liked them all, I think they fit with the story well and are beautifully drawn. I especially love the art, it's crisp and neat and so good.
The only two things I don't like is the MC and her choices. Maybe it's coz it was just the demo but all the MC seems to do is sleep and eat and laze about. She seems a bit ungrateful and spoilt like she wants a promotion but is unwilling to work for it. Maybe this can explained in the full game(some character development and past experiences explained maybe) but for now she seems like a really obnoxious person. I know the developer's went for a realistic, flawed character but she comes off as really annoying. The second thing is that there were very few choices throughout the demo, but on the bright side, there were multiple options for each choice and each of them made a significant difference. I feel like if you add a few more choices, however small their impact on the story be, it'll be more interactive.
All that aside, I really like this game and am looking forward to playing the full game when it comes out.