Xu Huilan, an ordinary woman, has always lived a modest and unremarkable life. But one DNA test reveals that she is the long-lost daughter of the powerful He and Lu families. When her biological parents reunite after thirty-eight years apart, old conflicts quickly resurface. They even propose getting divorced and demand that Xu Huilan choose which side she belongs to. Together with her daughter, Xu Anning, Huilan tries to guide the two elders into looking back on their past and uncovering the complete truth behind her disappearance. As everyone examines countless old records, long-standing misunderstandings are finally resolved. The two elders gradually learn to communicate honestly, let go of their obsessions, and join hands in public welfare and missing-person searches, bringing the warmth of a reunited family back into their lives.