Katou Hazuki is a character in [[Hibike! Euphonium]]. She plays tuba in Kitauji High School's concert band, joining the band as a beginner in the same year as [[Oumae Kumiko|Kumiko]]. Hazuki is known for her energetic and upbeat personality. She has a close friendship with [[Kawashima Sapphire]].
加藤葉月