Jiani, who has been working hard in Yuehai City for many years with her boyfriend Zhiyuan, recently encountered disagreements with him over the matters of marriage and buying a house. A phone call led her to reconnect with her biological family and embark on a journey to find them. She discovered that she actually has three biological siblings. During her time with her birth family, the three sisters healed each other emotionally, reminding Jiani of the bits and pieces of her childhood with her adoptive father. This experience prompted her to reevaluate her understanding of family relationships and emotions. Upon returning to Yuehai City, seeing Zhiyuan, who had always welcomed her back home at the bridge, Jiani summoned the courage to make changes.

After villager Gu Dahe reports criminal leader Wei Tianlang, he mysteriously disappears, and his sister dies under suspicious circumstances. Amid a nationwide anti-crime campaign, Lei Yang, captain of the criminal investigation unit, steps in to uncover the truth and bring justice.