Chen Mo, an unemployed young man, inherited the funeral shop left by his grandfather. He originally planned to sell the shop to pay off his debts, but he was involved in a centuries-old grudge between the Yin and Yang worlds. From then on, he embarked on a hilarious road of no return, selling wreaths during the day and catching ghosts at night. Chen Mo accidentally inherited the funeral parlor owned by his grandfather Lin Huaian. The shop contained the Lin family's ancestral secret technique of traveling through the underworld and the two lamps of yin and yang. Grandfather Lin Huaian was the last generation of Yin wanderers in Nancheng. He once guarded Liuye Lane between Wangchuan Ferry and Yinsi for hundreds of years. As Chen Mo took over the store, ghost missionaries from the underworld, ferrymen from the Meng family, descendants of the Bai family's paper-making descendants, and orphans who raised lanterns from the Ding family appeared one after another, and the "nightmare" suppressed under the yin bone altar also began to wake up. Chen Mo was forced to learn from scratch about lighting lanterns, drawing talismans, walking in the shadows, and catching ghosts. He gradually grew up through the tests of life and death, and finally accepted the inheritance of the Lin family and established his own world between the world and the underworld.