Also known as: 高坂麗奈, くみれい
Kousaka Reina is a character in Hibike! Euphonium. She is a highly skilled Trumpet player in Kitauji High School's concert band. She joins in the same year as Kumiko, and the two form a close friendship.
Reina has long Black Hair and Purple Eyes. She often wears Black Thighhighs with her school uniform. Reina has a serious, driven personality, which intimidates Kumiko at first. She aspires to be a professional trumpet player.