Mirai Sezaki

is a character from the spin-off novel. She is a third-year trombonist and the trombone section's leader of Rikka High School Concert Band.
== Etymology ==
* The name Mirai means "future" (未来). 
* Mirai's surname Sezaki means "swift current, rapids" (瀬) (se) and "cape, peninsula" (崎) (saki/zaki). 
==Trivia==
*According to the official Sound! Euphonium novel website: 
**Her special interest in jogging.
**Her special skill is horse riding.
**She likes salmon and the sea.
**She dislikes red caviar (salmon roe) and mirrors.
*It is possible that Mirai is the girl who is seen talking with Azusa Sasaki in Episode 5 of Season 2.
==Gallery==
rikkanovel2.jpg
Mirai_Sezaki1.jpg
Category:Female
Category:Third Years
Category:Rikka High School
Category:Characters
Category:Concert Band Members
Category:Trombonists
Category:Brass Players
Category:Novel Characters