In the dormant Dragon Cave, immortals slumber, each awakening spanning nine heavens. He discovers the three flavors of cinnabar, only to find the lead and mercury already seven times refined. Water and fire complement each other in the alchemy furnace, yin and yang intertwine, creating a chaotic transformation. Suddenly, the sound of dragons and tigers echoes from beyond the mountains; no one knows that I am a true immortal. This is a story of a person who carries half a dou of rice and transmigrates to another world to cultivate immortality.