On a rainy night in Hong Kong in 1998, Gu Nian'an, the newborn daughter of the Gu family, was abducted by human traffickers. Her mother, Lin Wanqing, fell ill from grief and was bedridden for many years. While his father Gu Mingchen and his three brothers supported the huge family business of the Gu Group, they never stopped looking for a daughter. They have been in trouble for twenty years.
Gu Nian'an, who was living on the dock, cut off her long hair and disguised herself as a man to survive. With her ruthlessness and resourcefulness, she consolidated her forces and became the "Wild Brother" respected by everyone. However, she always held on to an old silver lock with the word "An" engraved on it, guarding the vague fragments of her life experience. By chance, her eldest brother Gu Jinnian became suspicious because her features resembled her mother's, so he secretly took samples for DNA testing and finally confirmed that she was his lost sister.
The road home is not smooth. Lu Zeyuan, the "brother" Nian An met while disguised as a man, has already been attracted to "him". The Lu family's parents strongly oppose this "absurd" relationship. The counterattack of the old enemy at the dock, the impact of the truth about his life experience, and the exposure of his gender identity put Nian An into multiple difficulties. Until an accidental injury, her daughter's identity was completely revealed - Lu Zeyuan was surprised and happy, and the Lu family's attitude reversed; the Gu family brothers carefully guarded her past, waiting for her to take the initiative to open her heart.
From the "wild brother" in the dark alley of the dock to the lost and found little princess of the Gu family, Gu Nian'an pieced together a complete self bit by bit with the warmth of family and the steadfastness of love, allowing the Gu family, who had been separated for twenty years, to finally find the lost treasure and perfection in the embers of time.