I've just started playing today and have only gotten as far the Combat Basics class, but I already love this game. The story is gripping from the start, the gameplay is a mix of a lot of the things I love from different RPGs but at the same time like nothing I've ever experienced before, and definitely has the potential to be a world-class game.
I don't know how far the demo is from the final product, but I'd like to back your game up with user research, at no cost, should you be open to this kind of support. Please don't hesitate to reach out to me if you'd like some help on this end.
Good luck and congratulations so far on the game's development! I hope Lawmage Academy gets the recognition it deserves as a masterpiece.