Tang Yuanyuan, a wandering Daoist who has fallen into the life of a deliveryman, takes a job delivering a "toy" to the archway of the ghost market and transmigrates straight into another world where talismans serve as currency. He thinks he's the most useless person around, only to discover that no one there knows even basic Daoist arts. The Huangting Scripture, which he has memorized by heart, turns out to be a supreme secret manual. His aloof recipient, Pei Wujiu, corners him at every turn, insisting that he hand over the "real goods." As one pursues and the other flees, the secret of the stone archway gradually comes to light. Meanwhile, Tang Yuanyuan goes from a hapless fool who delivered the wrong goods to a counterfeit Dao Ancestor revered by thousands.
