As soon as the word "sacrificial offering" was mentioned, Xu Yuan instantly understood why the Yin Ghost had obediently taken up residence in Xia Qing's corpse.
Mortuary Secret Technique...
Yin Ghosts, creatures born from the remains of all things and composed of Soul Power, although unable to communicate, that did not mean they couldn't be exploited by humans.
As long as there was profit to be made, the mad scientists from the movies of his previous life were nothing but novices compared to the cultivators of this world, and the distance between the immortal and the mortal allowed them even fewer restraints.
Under the massive number of human lives sacrificed and the research by talented and gifted individuals, various information about Yin Ghosts was grasped by those in power, leading to many methods to utilize Yin Ghosts.
