After death, the soul turns into a lamp, and nine life lamps are hidden in the body. When the lamp goes out, it transforms into something between a human and a ghost. A low-level evil spirit cries twice at night, but a high-level evil spirit can destroy a city.
Some people were unwilling to accept the limitations of the nine lamps and found four "roads":
Incense Road - Stealing the will power of all living beings. He cultivated to a high place and turned living people into stone statues, and thousands of people worshiped him, but he could no longer taste the taste of a bowl of noodles.
The Path of Bones - sew the bones of demons and ghosts into your own body. The price of the surge in combat power is to endure the bones squirming in the flesh every day.
The secret medicine path - swallow the most poisonous thing in the world and exchange your life for strength. Repeatedly, I can laugh for three days when I see a circle.
Dream Pact Road - Sign a contract with the existence deep in the dream to borrow power. In the dream you are the king, but in reality you sleep twenty hours a day.
The four paths are all "stealing fire". Steal fire and you cease to be human. The lights will be on and your life will be long, but at the cost - sooner or later you become what you stole.