beta
I am thinking pink hair isn't a demon but maybe a witch? She's from a distance province she could have been hired by an enemy nation to infiltrate and destroy it. Because in the past whatever they did to cause all that havoc across the nation is not something possible without some form of magic. She nearly destroyed the nation and killed the emperor without even being able to marry him. Then had the empress killed as well and I would assume was layer crowned empress. But if Anastasia was the true chosen one I doubt the nation returned to peace after that as they would have actually angered the goddess at this point. This leaves me to believe that her desire isn't to become empress at all because if she does who knows what will happened. Likely chaos will repeate. I think her goal is just the fall of the country