となりの怪物くん

A studious high school girl who prioritizes grades above all else and approaches life with a detached, efficient attitude gets tasked with delivering class notes to a boy who has been absent since the first day of school after a violent incident. The boy, known for his wild and unpredictable behavior that earns him a fearsome reputation among classmates, suddenly returns and becomes seated next to her. He quickly develops an intense interest in her, confessing his feelings abruptly while struggling to understand social norms and his own emotions. She initially views him as a disruption to her focused routine but gradually becomes involved in his attempts to interact with others and attend school regularly. Their interactions highlight his animal-like instincts and her analytical nature as they navigate unexpected changes in their daily lives. (Unreviewed summary by Grok 4.1)