Grandpa's Love follows the life of Lin Zhaohua, a retired school teacher who finds himself struggling to connect with his modern, fast-paced family. After the passing of his wife, he decides to move in with his son's family, only to realize that the generational gap has created a significant emotional distance between him and his grandchildren, who are preoccupied with their digital lives and academic pressures. As Zhaohua begins to integrate into their daily routines, he uses his wisdom, traditional values, and gentle patience to navigate the complexities of their lives. Through a series of touching incidents, he helps his grandchildren overcome personal insecurities and academic struggles, while simultaneously teaching his son the importance of slowing down. The series explores themes of intergenerational healing, the preservation of family heritage, and the enduring power of unconditional love.