@Nicebutton7
I read this from somewhere, even if she is loved by her parents it wouldn't change her destiny to become the villain and the enemy of the country.
The reason being is that the Will of the world will lead her and control her to walk on that path no matter what. I think that's why her mother foresees nothing but her becoming a tyrant, and had to give up on her.
Good thing is that the young sister has the power to neutralize/block the Will of the world, so as long as they stick together she will be fine.