Don't Run, Your Comeuppance Is Here!

[Supernatural + no romance + mildly frightening + prophecy]

Blurb:

(All female characters appear solely as the plot requires. There is no romance in this novel.)

Everything has its cause and effect. Sow evil, reap evil. What goes around comes around, and justice is never delayed. My name is Qi Yuebai. To fulfill my grandfather's last wish, I will spend my life entangled with cause and effect. I punish evil, uphold justice, guide souls, and save lives.

A blood-soaked human-skin garment, a demon on a rainy day, a wicked child in the human world, a narcotics officer on the brink of death...