On a snowy night, Zhang Changgui, a homeless scavenger, finds a little girl named Nannan and struggles to raise her on his meager income. Six years later, when their home faces demolition, the family falls into conflict over Nannan's future. At the scene of the confrontation, Gu Yuehua humiliates and pushes the elderly man to the ground, just as Chen Mengyi, president of the Gu Corporation, arrives to intervene. Years ago, a car accident left her without a trace of her missing daughter, while her husband was seriously injured and fell into a coma. She has never given up searching for her child. After repeatedly crossing paths with the grandfather and granddaughter, a longevity lock finally reveals the truth about the girl's identity. One heartwarming story follows an elderly man who quietly raises an orphaned girl, while another follows a female CEO's unwavering determination to find her daughter. At last, the two stories lead to a warm and long-awaited reunion.