The aloof academic tyrant Bai Yueguang and Shen Zhixia were transferred to sit at the same table with transfer student genius Gu Zhaoming because of their excellent grades. The two disliked each other from "the heroine thought the hero was too out-of-the-box" and "the hero thought the heroine was too cold", to accidentally discovering each other's secret base hidden on the rooftop of the old teaching building, and gradually revealed each other's vulnerabilities (the loneliness of the heroine's parents' divorce, the grievance of being isolated because the hero focused on mathematics). Faced with campus bullying together (the heroine is surrounded by girls who are jealous of her, the hero uses mathematical logic to design "anti-routines" to fight back), and the hero silently protects her by "bringing dark dishes every day" (although the dishes are mushy, they hide the handwritten mathematical formula notes), the heroine gradually puts down the label of "perfect white moonlight" and declares her independence of thought "I am not your specimen." Later, the female protagonist moved due to her mother's job change, and the male protagonist used the news of the gold medal in the international mathematics competition to attract her back. The two reunited in a secret base, and worked together to overcome the difficulties of "the mother's collapse during overtime work" and "the male protagonist's scientific research bottleneck", and eventually became each other's "undefined" light.
