In a world where mortals and immortal cultivators coexist, there is a special industry - "spiritual item sales." Spiritual object sellers travel between the Yin and Yang worlds, specializing in dealing with supernatural events that are difficult for ordinary people to solve. They earn rewards by selling various magical objects, spells and other spiritual objects, while also guarding the balance between the human world and the world of immortality. However, a mysterious crisis is quietly approaching, the ancient seal is loosening, the evil forces are ready to move, and a war concerning the life and death of the two worlds is about to begin.
