In a world where spiritual energy and cultivation exist, practitioners advance through realms such as Qi Refining, Foundation Establishment, Golden Core, and Nascent Soul. For a special reason, the protagonist swaps souls with a powerful ancient cultivator from a lost era. They can only exchange bodies on nights of the full moon, giving each a chance to experience the other's world. In the ancient cultivator's body, the protagonist discovers astonishing talent and power, but also finds that the ancient cultivator is burdened by numerous curses. Meanwhile, in the protagonist's modern body, the ancient cultivator is stranded in an age where spiritual energy has dried up and must cope with all the hardships of modern life.