A million years ago, the Western Continent was forever changed by the establishment of Yi City, the largest nation in recorded history. Split into many districts, it was the greatest accomplishment of its creator, but its glory did not last long.

A failed ritual leaves an immortal woman bound to a monster. Now she must contend with their budding (and violent) partnership, a killer bent on hunting down her kind, and the search for the legendary creature that could make her life normal again