The world is plagued by demons and the strange, enemies of all living beings with feelings.
Demons have physical forms and devour sentient beings to nurture their intelligence. Those of higher rank can transform into living beings.
The strange have no physical form. They absorb the spiritual essence of all beings to cultivate their own spiritual bodies. Those of higher rank can possess the living.
This is an age of technology and imagination.
Fang Jia: I want to see the ends of the world!
