Yin Yang Watcher

Deliver couriers during the day and catch evil spirits at night. My name is Chen Mo. I was originally an ordinary courier, until I delivered a strange package to No. 44 Anning Road on a rainy night. There was only an ancient copper coin and a note in the package: "Within three days, you will definitely die." On the third night, a faceless black shadow demanded my life, but a mysterious old man came to my rescue. I was forced to sign a contract with the underworld - to capture eighty-one evil spirits to survive. From then on, I traveled between the Yin and Yang realms, saved the souls of the dead, killed evil spirits, made companions, and lost close friends. Until I discovered that there was another hidden reason behind my master's death three years ago. His soul was living in my body, and traitors had already bred within the underworld. They are trying to open the taboo "Gate of Yin and Yang", and I may only be able to protect the world by overturning this underworld. "When order becomes sin, breaking it is justice."