In the age of the end of the Dharma, Lu Xuan, a branch of an ancient medical family, was used as a bargaining chip by the family. The wedding banquet was canceled and the engagement became a laughing stock. He punctured the opponent's cold poison with one needle and accidentally activated the fusion blood system. From then on, he relied on medical skills to remove blood, swallow fragments, fuse the blood of hundreds of tribes, and use golden needles to save lives and turn the tables. Faced with the humiliation of breaking off the engagement, persecution from the family, competition for ancient martial arts, and assassination by evil cultivators, Lu Xuan went from abandoning his son to having all parties kneel down to beg for medical treatment, and easily conquered all those who looked down on him. In the end, he teamed up with Su Qingli, Yue Ling, and Shen Zhixia to explore the depths of the main pool, opened the locked door to the old year, and faced a deeper conspiracy and bloody battle.