Hazuki Katou

Hazuki Katou is one of the main characters of Sound! Euphonium series. She is Kumiko Oumae's classmate who looks a bit suntanned because she belonged to the tennis team when she was a junior high school student. She plays the tuba in Kitauji High School Concert Band. Hazuki has the appearance of a young girl with short straight brown hair that curls at the bottom, and is decorated with a red-pinkish hair clip. She has gold-hazel eyes. She wears the normal Kitauji High School female student uniform for first-year students. Hazuki is a bright and perky mood-maker, who is also very energetic and cheerful. She is almost always seen with a smile on her face, and can quickly become familiar with people, which is seen in Episode 1 when she refers to Kumiko Oumae as "Kumiko-chan", even though she just met her. She is also a friendly girl who talks innocently, and she is the type of person who prefers standing out to supporting others.