Kanade Ninomae, nicknamed "Majime," is a serious honor student distinguished by her masculine appearance and social clumsiness. Her sharp logical mind and mathematical talent clash with her difficulty navigating ordinary human relationships, resulting in frequent misunderstandings. Though popular among peers for her tomboyish demeanor, she remains oblivious to admirers’ attention, consistently rejecting confessions to prioritize her admiration for Saginomiya Shiori ("Robo"), whom she considers both an intellectual equal and a paragon of social grace.

Promoted from Class 1-2 to 2-2 for academic excellence, the 170 cm tall Kanade, born May 9, maintains a reserved yet tenacious personality. Her fixation on Robo manifests in stalking behaviors—misguided efforts to bridge the gap between herself and the unattainable sociability she envies. Viewing Robo as the ideal blend of intellect and charm, Kanade strives to emulate these traits but falters due to her innate social awkwardness.

Her interactions consistently juxtapose earnest intent with comedic blunders. Oblivious to romantic overtures and unequipped for casual conversation, she channels her focus rigidly toward academic rigor and an idealized self-image, cementing her role as a socially inept yet inadvertently charming figure among peers.