Qi Yiming, an unlucky ordinary college student who barely makes a living by working part-time, is suddenly targeted by a ghost because of a family pendant. The ancestral onmyoji grandma comes to the rescue, but due to an accident, there is a misunderstanding about a shortage of people in the underworld, which makes Yiming temporarily become a "part-time ghost." The mission is to help deal with the ghosts and supernatural chores in the underworld. During this period, Qi Yiming made acquaintance with a group of yin and yang eccentric friends, from ghost-catching and embarrassing things to unexpected growth. Hundreds of ghosts walk in the underworld at night, and monsters in the world dance wildly. Track down ghost cases, accidentally enter the underworld, break into human relationships, and solve mysteries of all kinds of ghosts and monsters. When Qi Yiming realized that he had been involved in a major change in power between the Yin and Yang worlds, the mystery of the true and false ghosts and the origin of spiritual power came to light. In the end, Qi Yiming led the old and new "employment teams" to resolve the crisis while laughing and scolding, harvesting growth and friendship, and becoming a new legend in the Yin and Yang world.
