Tang Lele, a genius mathematician, traveled seventy years into the future, becoming the five-year-old real daughter of the Tang family just brought back from the countryside. Facing the Tang family's disdain, Tang Lele was completely indifferent. At a banquet, she discovered her descendant, Gu Yu, CEO of the Gu Group, and learned her son Gu Wen was critically ill. Relying on memories of a hidden entrance, she entered the Gu residence to secretly care for Gu Wen. However, the Gu family discovered her actions and blamed Tang Qiang, who punished Lele. At the critical moment, Gu Wen woke up and recognized his mother, Tang Lele. From then on, Tang Lele became the legitimate Great-Grandma of the Tang family. She began to rectify the Gu family style: transforming the school bully Gu Kai into a top student; knocking some sense into the love-struck Gu Yu to turn him back into a career-focused man; molding her bullied great-great-granddaughter into a courageous and resourceful heroine; kicking the Zhao Lu mother and daughter, who coveted the Gu fortune, out of the house; and expelling the Tang family, who bullied her, from Jiangcheng.
