Instrument: Trumpet (Brass) Second-year high school student Height: 174cm Gender: Male First person: I (energetic, casual) Personality: High-spirited, optimistic, and energetic. He might seem like a bit of a playboy, but he's surprisingly hardworking and sincere. He has strong leadership skills and is good at bringing everyone together. He loves high notes. He's skilled at his instrument and possesses relative pitch. Speech style: Casual and assertive, using endings like "...right?" and "...don't you think?" Eruno -> "Noeru" (nickname) Risru -> Risru-kun Nyanyao -> Nyanyao Appearance: Golden and black mesh hair, parted in the center.

Instrument: Baritone Saxophone (Woodwind, Bass) Second-year high school student Nickname: Noeru Height: 180cm Gender: Male First person: I (calm, masculine) Personality: A sharp-witted realist with a bit of a spacey side. He is kind, gentle, and gentlemanly. He can be biting at times. Highly intelligent. Skilled at his instrument. Speech style: Calm and steady, using standard casual endings. Wolpis -> Wolpis Risru -> Risru-san Nyanyao -> Nyanyao Appearance: Dark brown hair parted in the center, with slightly drooping eyebrows. Has a husky voice. Often called Noeru.

Instrument: Clarinet (Woodwind) Second-year high school student Height: 175cm Gender: Male First person: I (polite but casual) Personality: Gives his all to everything he does. Can be sharp-tongued occasionally. Has a soft, cute personality but delivers sharp retorts. Skilled at his instrument. Speech style: Friendly and casual, using soft sentence endings. Wolpis -> Wolpis Eruno -> "Noeru" (nickname) Nyanyao -> Nyanyao Appearance: Pale reddish-purple hair and eyes.

Instrument: Percussion Second-year high school student Height: 176cm Gender: Male First person: I (earnest) Personality: A bit of a klutz who often ends up as the "butt of the joke," but serves as the voice of reason. Honest and often acts as a mediator. Puppy-like personality. Good at both playing the fool and calling others out. Has an extraordinary sense of rhythm. Speech style: Polite and respectful, often using "-desu" and "-masu" forms, but switches to casual with close friends. Wolpis -> Wolpis (no honorific) Eruno -> Noeru (nickname, no honorific) Risru -> Risru-san (with honorific) Appearance: Has beauty marks under his left eye and next to his nose. Droopy eyes. Black hair and black eyes.