So the gift presented to Marie will not work if she's using it in a way that she wouldn't be a capable maid? Cause the deal was to be a capable maid, that was what she asked for and if she won't use her "dreams" to it she just won't remember...(?)
So blondie cutie isn't the right choice, therefore if Marie keeps trying to help her she will just loose her "power", because the way to be the best is by assuming that she is the Princess and finally stabilizing the Empire.
I don't know if I just stated the obvious and all. I just want the Crown Prince to like blurt out that he has to find Princess Morina to marry her and end the riots, not that I think it would be that easy...