Kanade Hisaishi

As a fresh first-year student at Kitauji High School, this talented euphonium player joins the band during Kumiko’s second year. While she initially appears incredibly polite and possesses impressive social skills that charm her peers, there is a hidden complexity to her character. Behind her professional and courteous exterior lies a more calculating nature, leading Kumiko to describe her as someone who maintains a facade of politeness while harboring much more cynical intentions.