Ling Chen travels through time and becomes a down-and-out scholar in the remote county of Dajing. He encounters a plague/emergency as soon as he wakes up. He saves the dying with the emergency medicine and simple tools he carries with him, shocking the villagers. He gets acquainted with the kind-hearted girl Su Qingwan (future assistant) and the upright headhunter Zhao Hu (early supporter). He initially shows off his medical skills, but is regarded as a thorn in the side by local witch doctors and evil gentry, and encounters his first medical dispute and personal threats.
- Era: Dajing Dynasty (similar to the Tang and Song dynasties, with backward medical care, parallel witch doctors, frequent plagues, and the monopoly of medical resources by the powerful)
- Main plot: Use modern medicine as a weapon to break the shackles of ancient medical treatment, save lives and heal the wounded, innovate medical skills, and advance step by step, and eventually become a "medical saint" who affects the dynasty. At the same time, you can solve the mystery of your own time travel and protect your relatives and friends.
