Riko Nagase

Riko Nagase is a supporting character in the Hibike! Euphonium series. She was a student at Kitauji High School one year above Kumiko Oumae who played tuba in the school's concert band. Riko is a young teenage-girl below average height and slightly above average weight with dark brown hair that is styled in two low buns, brown eyes and she has relatively thick dark eyebrows. She wears the standard Kitauji High School uniform for second years.

Riko is a polite, soft-spoken and friendly girl who respects everyone in the school. However, she can also be serious at times.