The Seventh Duty

Zhou Chen, a night shift clerk at a convenience store, was selected by the underworld on his first night and became the seventh guard of Yin Yang Station. The first six were either crazy, escaped, or were punished. His job: selling oden during the day, and killing the dead souls at night. The first commission was to help an evil ghost find his daughter who had been missing for thirteen years, and the second was to help a wealthy daughter who had just been strangled to find the real murderer. Both cases share the same murderer. And he hasn't even reached the Qi Refining stage yet.