Poor loser Zhao Tiezhu gets mistakenly dragged to the underworld by the drunken Ox-Head and Horse-Face while trying to save a little girl. He thinks he'll get to enjoy himself as a ghost, but the King of Hell forces him into a dead-end government job as a "Special Underworld Envoy." He has to hand over 10 million yuan every month as protection money, equivalent to 1 billion underworld coins, or he'll be thrown into the boiling oil! To make matters worse, the King of Hell assigns the gluttonous divine beast Di Ting, nicknamed Gousheng, who can hear people's thoughts, to keep an eye on him. With nowhere else to turn, Zhao Tiezhu returns to the mortal world with Gousheng and begins an absurd life, dodging mortgage collectors while using the underworld's "black technology" to make money. Fortune-telling livestreams, an underworld-currency investment app, helping ghosts meet the KPIs they failed to achieve in life... When the resentment of modern office workers collides with the underworld's bureaucracy, watch as this poor loser rises from the gap between the underworld and the mortal realm to become a "worker in the world of the dead"!