The time for the resurrection of the dark lord Kuei-Yan-Wang draws near, as does the end of the world. Yakuma Fuji searches for the holder of his soul so he can become human again, but first must take part in an epic battle full of ancient mysticism and blood and thunder.

As Yakumo and Pai embark on a quest to unlock Pai's hidden memories they unleash the full extent of her power. They team up with a magical monk and a disreputable treasure hunter as they try to find the Lost City of the Sanjiyan - before the ultimate battle begins.