The Golden Immortal Ying Wujiu, to repay the protection grace of the Xu family's ancestor, enters the Jiangcheng Xu family as a matrilocal son-in-law for three years, secretly suppressing calamities and disasters for the Xu family. During this period, he suffers all kinds of humiliation and contempt from his wife Xu Aoxue, childhood sweetheart Shen Zekai, and social elites, and is regarded as a useless matrilocal son-in-law. When the three-year term expires, Ying Wujiu signs the divorce agreement and leaves. Having recovered his true identity, he becomes a senior master jointly revered by the antique, martial arts, and medical realms of Jiangcheng. Xu Aoxue falls into a bankruptcy crisis due to the South City plot ancient tomb incident, and suddenly realizes that it has been Ying Wujiu secretly guarding the Xu family for the past three years. Awakening abruptly, she kneels and begs for reconciliation, but is flatly rejected by Ying Wujiu. The two are henceforth clear of mortal ties, becoming strangers passing by.