The Great Zhou Dynasty teeters on the brink of collapse, as power struggles at court and bloodshed across the martial world intertwine into a deadly game. A scroll called the Mysterious Dragon Reverse Scale, concealing the world's dragon veins, sparks a desperate struggle among three powers: the court's ministers, the Prince of Zhenbei's household, and the Blood Fiend Sect, an assassin organization from the martial world.
Shen Yanzhi, an orphan from a humble medical clinic, has the Dragon Blood of the Shen clan, founding heroes of the dynasty, sealed within him. On the night his family was massacred, half of a dragon-patterned jade pendant plunged him into the heart of the maelstrom. He is both a medicine vessel capable of neutralizing all poisons and a key that can control the dragon veins.
Su Mingwei, the only daughter of the Prince of Zhenbei, meets Shen Yanzhi on a freezing river amid wind and snow as she investigates the truth behind her father's mysterious poisoning. Each possesses half of the jade pendant, but their cooperation and mutual suspicion keep them on edge at every turn. When she discovers that her father's death is connected to tribute presented to Crown Prince Zhao Xuanyu, and Shen Yanzhi's awakened Dragon Blood triggers a cataclysmic change in heaven and earth, the truth proves far more cruel than they imagined.
Zhao Xuanyu, a crown prince who appears weak and timid, has been plotting in secret for twenty years. Using the Landscape and Society Map as bait, he joins forces with martial factions to surround and destroy the Blood Fiend Sect. But his ambition to devour the dragon veins and seize the throne is exposed in the process. The half-map hidden at his waist also resonates with Shen Yanzhi's jade pendant.
Chu Li, the Blood Fiend Sect's leader, commands an army of barbarians at the border. Every move he makes targets the heart of the dragon veins, and he is even willing to sacrifice himself. As dragon-blood icicles pierce his body and the earth veins beneath the City God Temple suddenly run wild, his mad laughter echoes through the blood-red moonlight: "In three days, you will all become offerings to me!"
The Elder of Mysteries, a reclusive master, knows the ultimate secret of the Shen clan's Dragon Blood and the Landscape and Society Map. Are the fragmentary scroll and life-prolonging medicine he gives a salvation or a curse? When the dragon veins