Kozue Satou

Acting as the diligent class representative for Sunao and Akiya, this straightforward student brings a no-nonsense attitude to her school life. As an active member of the Kendo Club, she possesses a disciplined and frank personality that makes her stand out among her peers. However, a mysterious layer to her character emerges through her intense, watchful focus on Nao, as she appears to be closely monitoring Nao's every move for unknown reasons.