Born in a mass grave, Lin Jiuyin is branded with an ill-fated destiny, but awakens the Long Sleep System: sleep to extend your life and earn attribute points. From a small village in the late Qing dynasty to an age of paranormal forces, he sleeps through spans of ten years, a century, a millennium, and even ten thousand years. He witnesses villages fall, dynasties rise and collapse, and countless ghosts return. He buries those he once knew with his own hands. A bronze bell he happens to bury becomes a funerary artifact, and a paper effigy child he saves becomes the Ghost Emperor. In the end, he cleaves the heavens with his sword and opens the gates of the underworld. Honored as a founding master, he learns the hidden connection between himself and the cycle of reincarnation in the underworld. He seeks neither power nor status. He only wishes to keep the memories of old friends alive through the ages and remain a quiet undertaker.