The "Shanhe Medical Code" brought back from Kunlun Mountain by Zhang Qian in the Han Dynasty records the mystical medicine method of "correspondence between heaven and man", which uses the aura of heaven and earth to regulate human disease. Lu Zheng can diagnose the "congested aura" of the human body and the surrounding feng shui with the help of Qi reading, use acupuncture to sort out the trapped evil spirits, and use the "medicinal primers" of vegetation, masonry and stone to make up for the defects in numerology. But as the rescue progresses, he discovers that the wildflower planted by his grandfather before his death is ambergris, which is specially designed to gather spirits in graves and stabilize a dragon's veins. One day, when Lu Zheng was treating a disease, the celestial phenomena mutated, and the entire city's feng shui was misaligned for three hours, exposing the power of his aura and getting involved in a secret battle related to the destiny of the country. The mysterious organization from outside the mountain threatens because that ancient book can break the feng shui of a country and can also use the corpse carving array to revive the coordinate information of ancient people's hidden tunnels in the world.
