Lin Wan, a modern medical student, travels back to Shen Qinghe, an orphan girl in the prosperous Tang Dynasty, and goes to her father's hospital to investigate the cause of death. Relying on the fusion of Chinese and Western medicine to save people, he uncovered the king's conspiracy to peel off the skin and use inferior medicine to poison and sulfur. He met Jinwu guard Xiao Jingyuan and jointly investigated the case. He was involved in the power struggle between the Eastern Palace and the Mobei rebels. He vowed to protect the peace of Chang'an and restore his father's innocence.
