Deng Qiu, the successor of a generation of miracle doctors, was forced to remain anonymous due to changes in his apprenticeship and opened an inconspicuous Chinese medicine clinic in a small town in the south of the Yangtze River. He is gloomy and taciturn, and does not like to interact with others, but he happens to have a pair of "yin eyes" that can see through the meridians of the human body, and can also perform the long-lost "yin medicine" - using poison to fight poison, and using yin to replenish yang.
Clinics can never treat ordinary illnesses. When policewoman Lin Xue comes to his door with a bizarre murder case, when a descendant of a family of miraculous doctors comes to play, and when former enemies follow clues to find him, Deng Qiu's peaceful life is completely shattered. He had to use the skills of Yin medicine again and again, healing people with water and fire, but also hurting people invisible.
A deeper conspiracy has surfaced: someone secretly collects strange poisons from all over the world, intending to refine the legendary "Yin and Yang Talisman of Life and Death" and control the entire martial arts world. And Deng Qiu, who mastered the art of Yin medicine, became the only person who could compete with him in this conspiracy.
He is a healer and a hunter. But when the fog clears, the biggest enemy may be hiding among the people closest to you.
