A surprise math test reveals the true academic prowess of Jiangnan, a seemingly average student who unexpectedly scores the highest. His classmates, including the class president, school beauty, and class representatives, all score significantly lower. Jiangnan's exceptional score sparks suspicion and intrigue among his teachers and peers, leading to hilarious situations and the revelation of his secret: he's a master of score control! This story blends elements of school life, comedy, and a touch of mystery as Jiangnan navigates his newfound fame and maintains his low-key persona.