Satowa Hōzuki, a second-year Tokise High School koto club member, wields extraordinary talent on the traditional instrument as heir to the renowned Hōzuki School. Her poised, guarded exterior stems from a fractured family dynamic: after her father’s passing, her mother prioritized preserving the school’s prestige, molding Satowa into a prodigy bound by rigid expectations. Defying tradition to play with heartfelt emotion cost her a national competition and her mother’s approval, culminating in exile from the Hōzuki legacy. Seeking redemption at Tokise’s koto club, she initially clashed with the informally trained members, critiquing their methods while concealing her loneliness. Gradually, she transitioned from detached virtuoso to dedicated mentor, imparting technical expertise as the group taught her the power of shared musical passion. Her bond with Chika Kudo, a reformed delinquent whose raw enthusiasm once irritated her, deepened into mutual admiration and quiet romantic tension, challenging her disciplined resolve. Collaborative performances and the club’s unwavering camaraderie pushed her to confront familial scars. During national preliminaries, her unapologetically expressive playing resonated so profoundly it rekindled her mother’s empathy, mending their estrangement and restoring her Hōzuki heir status—a testament to harmonizing heritage with self-expression. Once an isolated perfectionist, Satowa emerged as a unifying force, championing emotional authenticity and collective growth. Her journey—marked by mentoring peers, reconciling past wounds, and balancing artistic integrity with vulnerability—cemented her resilience, reshaping both the club’s future and her own.