After three-and-a-half-year-old Shen Shen arrives at the Sheng family, she unexpectedly discovers that the Sheng family's Third Master Sheng Xuanxiao is closely connected to her own background. Her lively and cute personality quickly wins the affection of the Sheng family's elders, uncles, and aunts, and also leads Sheng Xuanxiao, who was originally not good at expressing emotions, to learn for the first time how to take care of a child. From strangers to familiar faces, from being flustered to relying on each other, the two gradually build a deep father-daughter bond through warm and bustling daily interactions. Meanwhile, Shen Shen always misses her mother in the distance, and Sheng Xuanxiao also begins searching for clues from the past for the sake of his daughter.