Motoharu, a Sanada North High student council member, defies his delinquent-like appearance—marked by a stern demeanor, goatee, and casually disregarded uniform rules—with a gentle, shy nature and unwavering dedication to his duties. His conscientiousness and inability to reject requests often lead peers to exploit his helpfulness. Raised in a home marked by parental absence, he shares a sibling dynamic with older sister Mino (Sanada West High) that blends mutual reliance with playful antagonism, as she wields seniority to assign tasks or mock his superior cooking skills. Their bond thrives during shared walks home and discussions of everyday life, anchored by routine and collaborative responsibilities. A history of mischief traces from elementary school, where he swapped classmates’ shoes undetected for years, to high school antics like fabricating a love letter to Yoshitake—a scheme he abandoned mid-execution, redirecting blame to Mitsuo out of guilt. Yet his loyalty surfaces in actions like aiding Mitsuo during mishaps or coordinating thoughtful gestures for friends. His camaraderie with classmates, including Karasawa, intertwines student council work with playful plots, such as teasing Ringo (Sanada East High). An accidental glimpse of Ringo’s underwear triggered intense remorse, prompting a three-day school absence—a testament to his principled aversion to causing harm, even unintentionally. Personal growth emerges through challenges like mastering cycling with Yoshitake’s support after a theft incident, revealing vulnerability beneath his tough exterior. His hairstyle’s evolution from meticulously styled bangs to a relaxed, longer cut mirrors his journey toward self-acceptance. Consistently portrayed across media, Motoharu’s narrative weaves loyalty, self-awareness, and the gap between perception and reality through humor and heartfelt interactions, cementing his role as a figure balancing mischief with moral integrity.