Gu Yun was once a genius disciple of the Azure Mountain Sect, but a mysterious mark on his left arm caused his cultivation to plummet, reducing him to a servant whom everyone could bully. His family suddenly suffered a devastating catastrophe, and his father and clansmen were thrown into a death prison by their enemies. At the brink of despair, he awakened the divine seal with his blood and encountered the Ancient God Jin Yuan in a chaotic dimension. From then on, he used spirit herbs that grew a thousand times faster, mysterious Heavenly Spirit Fire, and an extraordinary path of alchemy to rise again. One furnace of pill fire burns his formidable enemies to ashes; one unwavering Dao heart breaks through the heavens. From the Azure Mountain Sect to the endless sea of stars, Gu Yun vows to rescue his loved ones, settle his blood feud, and uncover the secrets of the Chaos Immortal Cauldron and the ancient divine race.