Synopsis：Lu Xiaonan is an independent woman who embraces a modern lifestyle. She fully understands that marriage is not simply the union of two individuals, but a difficult struggle between two families. Therefore, she never dared to get married until the arrival of Kai Wen, a perfect man in every way, who dispelled Lu Xiaonan's fears about marriage. The two are newlyweds, and they rent a place in Xingfuyuan, the residence of the Su family's three generations. However, what Lu Xiaonan never expected was that Kai Wen had been separated from his family since childhood and decided to search for his lost relatives. The unexpected reunion between Kai Wen and his long-lost family shatters their perfect and happy married life. Xiaonan has to live with Kai Wen and his extended family. Lu Xiaonan is exhausted from dealing with the sudden new relationships and family members. Fortunately, no matter what twists and turns they go through, her husband stands firmly by Lu Xiaonan's side and never wavers. Through increasing interactions with his family, Kai Wen gradually recalls memories of his childhood. He begins to realize that his disappearance was not a simple accident. As the truth slowly unfolds, this happy family falls into a new crisis.