I just finally completed the demo. My favorite character so far is Celeste; I agree with Hikiyami Moriko below that she and the other female characters in the game are pretty, and I like Celeste's personality.
Finally taking down the culprit was also really, really satisfying, you did a good job with this trial. And Tyrion seems like a good guy; I'm happy with him as our protagonist.
I'll wishlist this game on Steam; good luck with the campaign!