Very interesting mechanic! I don't think I've seen one like this before. Unfortunately couldn't get through stage 11 but this definitely kept up my attention longer than any other game I've tried from this jam. The difficulty curve starting with very simple teach-the-mechanic levels to more complicated ones works nicely too.
Some criticisms: I understand that you have some demons with a bigger radius of vision. I wish they also had a different appearance from each other, like the demon that can't be charmed. Also, sometimes it's impossible to tell which demon is gonna go to if they're equally far from two or more different ones, so maybe have some sort of tell (or let the player choose?). It might also be interesting to have the love spell take a turn to do and only last a few turns, so the player has to strategize more carefully about their movement.