Mu Chen is transported to another world by a text message and forced to marry Jiang Yupin, a female ghost. By a twist of fate, he obtains a thousand-year-old amber, and Jiyue, who dwells within it, recognizes him as her master. He meets Qian Xing, a zombie, and Shuluo, the Ghost Lord. With a dandelion and a mosquito, he sets up an express delivery service in the otherworld, trading human blood and offerings with ghosts and zombies. Let’s see how Mu Chen and his companions make their mark in this strange world... But can things really be that simple? Is there a connection between the mysterious text message and the legendary True Immortal who suddenly appears?