Legend has it that a thousand years ago, the feudal states of the Spring and Autumn period fought endlessly for their own selfish interests, staining the rivers and mountains with blood. Unable to bear the chaos engulfing the realm, the First Emperor of Qin mobilized the entire nation to attack Zhao and finally obtained the supreme treasure of heaven and earth, the He Shi Bi. He then ordered the Kunlun alchemist Xu Fu to use the He Shi Bi as the body, and the First Emperor's vital energy and lifespan as the auxiliary ingredients, to forge the Nine-Dragon Imperial Seal atop Mount Tai. With it, he sought to borrow the power of the Heavenly Dao to bring peace to the realm. But the Heavenly Dao is merciless. Its power nearly exhausted the First Emperor's lifespan, leaving him terrified. He sent Xu Fu to Penglai in the Eastern Sea to seek the elixir of immortality, but when Xu Fu returned several years later, the First Emperor had long since died. Believing he had failed the First Emperor, Xu Fu used cold iron from Kunlun to make a bronze blood coffin and sealed himself and the two treasures inside. From then on, the whereabouts of these two supreme treasures became unknown. A thousand years later, a silk manuscript from the Qin emperor, unearthed by chance, reveals a shocking secret buried for a thousand years.