Pei Zhiqiu, the founder of the Pei Group, dies protecting her three younger brothers. Her soul travels fifteen years into the future and enters the body of Lin Zhiqiu, the neglected biological daughter of the Lin family. At a banquet hosted by the Pei family, she fights back against the bullying of her adoptive younger sister, Lin Tian. Facing the Lin family's harsh accusations and the destruction of her necklace, she uses memories from her past to make her arriving younger brother, Pei Jin, recognize her. She then decides to attend university entrance exams under the identity of Lin Zhiqiu, transforms her appearance, and returns to school with a new attitude. She humiliates Lin Tian and Gu Yanzhou, but clashes with her third younger brother, Pei Ye, who does not recognize her, over a basketball incident. After getting into a fight, her family is summoned to school. The Lin family and Gu Yanzhou's mother put pressure on her in the principal's office, but Pei Jin and Pei Ye rush over as soon as they hear the news, joining forces to stand up for her.