The Realm of Yuandao

The ghostly blood clone of the Demon Emperor in the Demon Realm sacrifices and trains the godless blood slaves to break through the boundary wall and enter the human world. As a result, wars and wars break out in the human world. Corpses litter the fields. People die without souls. They are either refined by the blood slaves and sacrificed to the Demon Emperor, or they are sucked into the blood slaves' bodies and cause trouble in the human world...