Yuria Aikawa attends Omega High School, a place where academic performance dictates strict social hierarchy and authority. Student standing, and the significant influence held by the student council—especially its president—are determined solely by test scores.

Though she presents herself as an ordinary girl who enjoys leisure activities and dates her boyfriend Shuri, Yuria wields extraordinary intellect. She secretly achieves the top score on every examination, a hidden genius contrasting sharply with her conventional outward behavior and interests.

Upon enrollment, Yuria leverages her academic supremacy to become student council president. In this role, she actively works to transform the school environment, championing initiatives aimed at increasing enjoyment and engagement within the rigorous academic structure. Her efforts focus on introducing elements of fun into daily school life while navigating the pressures of the performance-based system.