I Work as an Errand in the Underworld

I, Cui Yang, was born in a rural family. According to my father, the night I was born was full of strange things... However, I lived a leisurely life in the countryside before I was eighteen years old. But on my eighteenth birthday, something unexpected happened... From that day on, I embarked on a sinister path of dealing with the affairs of the world by day and settling the injustices of the underworld at night.