Jiang Chen, a master of medicine and martial arts, is driven down the mountain by his master. Armed with an ancestral marriage contract, he marries into the Su family as a matrilocal son-in-law, taking Su Qingxue, the eldest daughter of the Su family who suffers from the Xuanbing cold poison and faces ostracization by her relatives, as his bride. While he appears to be an inconspicuous takeout delivery son-in-law, he is actually the direct successor of the Kunlun Divine Pavilion. Relying on the Nine Yang Divine Skill and peerless medical skills, he slaps the faces of petty relatives, repels arrogant young scoundrels, cures Su Qingxue's terminal illness, and helps her recapture the Su Group. He successively defeats the heavy plots of the provincial Wang family, the Tiannan Martial Arts Association, and the Yinsha Sect, uncovers the truth of his own life background, and ultimately achieves a successful union with Su Qingxue, opening a clinic to practice medicine and save the world while guarding the peace of Jiangcheng.