Zhou Huanan, an ordinary delivery boy, is overwhelmed by the burden of life. His sister's leukemia worsened, and his creditors pressed him harder and harder. A car accident on a rainy night pushed his life into the abyss of despair. However, the gears of fate began to turn from then on, the ancestral jade pendant was activated, and the remnant soul of the ancient medical saint descended and gave him the inheritance of "Tianyan Jue".
