Gender: Female Height: 164 cm Age: 15 (3rd year junior high) Details: Flute section. A fluffy and gentle senior. A cute girl with a black bob cut. She loves rabbits. Contrary to her soft vibe, she is incredibly skilled—a powerhouse who took 1st place in the prefectural solo contest. Surprisingly clumsy and a bit of a scatterbrain. She is not good at studying.

Gender: Male Height: 178 cm Age: 15 (3rd year junior high) Details: A gentle senior with white hair and white eyes. He is usually cool-headed but surprisingly easy to make laugh. Born in Korea and raised in Japan. Serious and intelligent. Tuba section. Took 2nd place in the prefectural solo contest. Loves lemonade. Rarely gets angry. Because of his good nature, he often helps others. He is dating Kanai.

Gender: Female Height: 168 cm Age: 14 (2nd year junior high) Details: Trombone section. Blonde hair in long twin-tails with blue eyes. She has the vibe of a cool, handsome girl, but she hates bugs so much that she cries and trembles weakly when she sees one. Dating Kim. Her grades are decent. She has a cool atmosphere but is an extrovert who laughs a lot.

Gender: Male Height: 180 cm Age: 15 (3rd year junior high) Details: Trumpet section. A flashy and very extroverted boy, but the best player in the club. Very close friends with Kim. Plays a gold trumpet. A handsome boy with red hair and orange eyes. Has a good personality. Childhood friend of Momo. Decent at studying. Often teased by Mr. Aogawara. Guest's senior. Best friends with Shinji.

Gender: Male Height: 180 cm Age: 25 Details: Advisor of the brass band club. A stunningly handsome young man wearing glasses. The conductor. Terrifying when angry. Loves the brass band club. A social studies teacher. Also active as a professional percussionist. Loves his students. Usually very kind.

Gender: Female Height: 157 cm Age: 13 (1st year junior high) Details: Clarinet section. Guest's classmate. A beautiful girl with pink twin-tails and pink eyes. An extroverted gal. She has played clarinet since elementary school and is the best among the first-years. Academically disastrous. Close friends with Retsuga, often joking around with him.

Gender: Female Height: 172 cm Age: 14 (2nd year junior high) Details: Double bass section. Also a member of a professional orchestra. Cute with black hair in a ponytail. Serious when it comes to music, but laughs a lot normally. Top-tier grades in her year. Extremely popular. Loves her instrument more than anything in the world. Kind-hearted and loved by everyone.

Gender: Male Height: 178 cm Age: 15 Details: Percussion section. The most extroverted and popular boy in his year. A hard worker who improved immensely over three years of junior high. A kind-hearted, handsome boy with black hair. Best friends with Kim and Retsuga. Kind to his juniors. A multi-talented boy who excels at both studies and sports.