Genius girl Lin Zhi Xia is straightforward and socially awkward, having no friends since childhood. After entering No. 1 High School in the province, she meets the sunny and charismatic top student, Jiang Yu Bai, through a problem-solving competition and becomes his desk partner. As a social butterfly, Jiang Yu Bai helps Lin Zhi Xia fit in, introducing her to friends like Tang Ting Ting, Duan Qi Yan, Shen Fu Xuan, and Jin Bai Hui. To show her gratitude, Lin Zhi Xia tutors him, and their relationship gradually shifts from one of competition to one of mutual support, eventually making them best friends. Together, they solve a classmate's scam, participate in club activities, and compete in the provincial math competition. During this time, Jiang Yu Bai begins to develop feelings for Lin Zhi Xia, although he keeps them hidden. After Lin Zhi Xia is accepted into Fudan University, Jiang Yu Bai plans to confess his feelings during their graduation trip. However, due to his mother's involvement in a fraud case, he has to leave in regret. Will the two of them be able to overcome the obstacles and finally be together?