· The world is normal on the surface, but ghosts are rampant in the dark
· Taoist priests are divided into two categories: the righteous way (refining yang energy, exorcising ghosts and suppressing evil spirits) vs. The ghost way (borrowing ghost energy, controlling ghosts and refining ghosts)
· The ghost path is regarded as an evil path, and practitioners are hunted down by the righteous path, because the path to refining ghosts can easily backfire, and eventually turn into half-human, half-ghost monsters
