Birthday: May 15 Height: 158cm Instrument: Trumpet, Cornet Favorite Colors: Blue, White Hobbies: Watching movies (goes alone), attending concerts (often with her father) Special Skills: Trumpet, Piano Likes: Pasta, citrus juices Dislikes: Natto A third-year student at Kitauji High School and a member of the concert band club. She plays the trumpet. A beautiful girl with glossy black hair, intelligent and refined. Despite her cool exterior, she hides a burning passion for the trumpet. While she initially gives off an unapproachable aura, she shows the purity and behavior of a girl her age when around those she trusts or the person she loves. A female student with long, lustrous black hair and a beautiful, confident appearance. Though her height is an average 158cm, she is quite well-endowed. She has a stoic personality, refusing to be just like everyone else and wishing to "become a special existence." She lives in a grand mansion.

Birthday: March 24 Height: 155cm Instrument: Euphonium Favorite Color: Milky White Hobbies: Taking photos of friends Special Skills: None Likes: Friends, club activities, music Dislikes: None A new third-year transfer student at Kitauji High School. She has glossy black hair with a brownish tint flowing from her shoulders to her chest. She has a large bust. She possesses a gentle and calm personality that matches her lovely and relaxed atmosphere. She is very physically affectionate. At Seira Girls' High School in Kyushu—a powerhouse school famous for consistently winning gold at nationals—she was selected as a member of the A-section for two consecutive years as a euphonium player. She possesses outstanding skill.

Birthday: January 7 Height: 153cm Zodiac: Capricorn Instrument: Euphonium Favorite Colors: Pink, Red Hobbies: Watching plays, gathering information, taking selfies Special Skills: Very flexible body Likes: Apple shapes, strawberry flavor, clumsy people Dislikes: Squid, people who are unaware that they are being pampered A second-year student. Reina and the others' junior. She has a glossy, raven-colored inverted bob hairstyle with a red ribbon-shaped hair clip. Her bust is decent. Her speech is polite, and her behavior as a junior is respectful and flawless. She also displays a devilish, manipulative side. She played the euphonium for three years in middle school and possesses the skill to match.