After the reincarnation of the former underworld judge Lu Jiuli, he ran a 24-hour convenience store delivery point called Yin Yang Express Bureau. He cooperates with Bai Ling, a girl from the nine-tailed fox tribe, to fight against the villain Wu Xiangjun who is trying to reconstruct the laws of heaven, and ultimately protects the balance of the three realms. In the process, they experienced many events such as the human world, the ghost world, and the demon world, and revealed the huge conspiracy hidden behind the three worlds.
