After a world with conservation of matter and stable structure was broken into by a time-traveling woman using a plug-in...
Still the same. As for the time-traveling woman?
She's back to her old ways.
P. S. Recently, I prefer more vulgar plots, so it is inevitable that the article comes from my heart. Although the heroine is a royal daughter, the article is a product without too many plots, too many palace battles, and not too much ambition.