As Soon as She Falls Asleep, She Transforms into a Beast, a Rare Female That Is the Favorite of the World

What a mess, it's not the world of beasts, there is the imperial city, the four major families, princes, vendors, and human traffickers. If you want to write about ancient times, just write about ancient times. What kind of world of beasts? The heroine is either being killed by female jealousy, or being bullied by others, and she can't take revenge without taking revenge.