In a world like our own, but with animal people, animals that are myths in our world, and science that grants strange power and robot technology, Xiao Mei is just a doctor's apprentice. But when a new emperor takes the throne and strangers appear at her master's doorstep, Xiao Mei ends up on a journey to save her family. She will travel across the country, aided by unlikely allies, and discover truths about herself she never thought possible.