Mirai Sezaki (Sezaki Mirai) is a character from the spin-off novel. She is a thrid-year trombonist and the trombone section's leader of Rikka High School Concert Band.
Appearance
Personality
Background
Chronology
Trivia
- It is possible that Mirai is a girl who talks with Azusa in Hibike anime S2 episode 5.