The Hundred-Day Demon Extermination Society is a murder game initiated by five Demon Cultivator ancestors themselves.
The so-called Demon Cultivators here are not demon species, but immortals who possess demon arts, such as the Blood Immortal Ancestor.
The Blood Immortal Ancestor is a Heavenly Immortal with a Two-Crown Heavenly Immortal Cultivation; he possesses a set of demon arts called Demon Refinement.
Demon Refinement can refine cultivators into demon species for their use, acting as their puppet for life, subject to their control, such as Hu Tianming. The Blood Immortal Ancestor used Demon Refinement to refine him into a Blood Demon.
