Sarah Kazuno

Sera Kazuno is a third-year student at Seisen Girls' High School in Hakodate, Hokkaido, and the driving force behind the idol duo 'Saint Snow,' which she formed alongside her younger sister Ria. Renowned for her exceptional vocal talent and commanding presence, she initially appears as a formidable rival to Aqours, holding herself and her performances to an uncompromising standard. Despite her outwardly serious demeanor, she carries herself with genuine grace and courtesy. Following a heartbreaking defeat in the second season, Sera demonstrates remarkable emotional maturity—choosing to channel her experience into encouraging Ria and supporting Aqours as they each pursue their own musical aspirations.