At the end of the Eastern Han Dynasty, natural disasters raged and the earth's veins were in chaos. According to secret rumors, Chi You, Ying Long, and Nv Ba died in three battles in ancient times, and their corpses turned into "dragon bones" and were hidden deep in eight tombs, which contained the power to "change the world." Cao Cao set up a gold school captain, ostensibly for military pay, but in fact he wanted to seize the power of the dragon carcass in order to control the world by performing the "Dragon Reversal Technique".
Xiao Yunqing, the defected captain of the Mojin Academy, possesses a yin-yang pattern that can sense the earth's energy, and embarks on a dangerous journey to trace the truth behind his master's death. He unexpectedly gathers the mute female poison doctor Qing Wu, an orphan of the Five Poison Sect who is looking for the cause of his parents' death; the cynical "ghost hand" Ah Jiu, a tomb robbing wizard who seeks medical treatment for his sister; and the veteran Chen Sanshi, a soldier with a strong promise to bring his "brothers" home. The four form a subtle alliance and step into an ancient tomb filled with treacherous mechanisms and the power of nature.
From the bone-burning blood pool in Chiyou's Blood Tomb, to the maze of magnets where Yinglong's bones are hidden, to the deadly phantom caused by Qiongqi's poisonous miasma, and the truth about fire control in the female demon's fire tomb... They are shocked every step of the way. Chen Sanshi died in the sea of fire to save Ah Jiu; Qingwu discovered that his father's last words revealed that the dragon skeleton was actually a "prison" for the ancestors to seal the power of nature; Xiao Yunqing also gained insight into Cao Cao's ambition to use the power of the dragon skeleton to cause natural and man-made disasters. When they finally arrived at the abyss of Guixu in the East China Sea, Cao Cao came in person to gather the eight dragon carcasses to change his fate. Xiao Yunqing resolutely mobilized the power of the earth to sink into the abyss with the secret of the dragon carcasses and the monstrous sea water to end the disaster.
After the catastrophe, Qingwu used the female demon's ability to control fire to extinguish the plague, and Sister Ajiu recovered and used the hanging pot to save the world. Ten years passed, a giant fish with red scales suddenly appeared in the South China Sea, and a bronze piece of a mysterious star map came from the Western Regions—