Delivery boy Chen Mo was forced to make a living, so he took orders on a rainy night and delivered them to the haunted house at No. 13 Huaiyin Road, which is said to be the "Palace of Hell" in urban legend. There, he encountered the inhuman old man-eating ghost Zhang Wang. He narrowly escaped with his quick wit and luck, but was left with a strange mark on his shoulder, and his phone was forcibly bound to the "Huangquan Suda" APP that could not be uninstalled. This system from the underworld constantly pushes weird orders, forcing him to shuttle between the evil places of the underworld and the junction of yin and yang, delivering special items and even "guests"
