Mion Saijou

is a character from the spin-off novel. She is the identical younger twin sister of Kanon Saijou and a first-year student who plays oboe in the Rikka High School concert band.
== Etymology ==
* The name Mion means "beautiful" (美) (mi) and "sound" (音) (on).
* Mion's surname Saijou means "west" (西) (sai) and "article" (条) (jou).
== Trivia ==
* According to the official Sound! Euphonium novel website:
** Her favorite colors are blue and silver.
** Her special interests are live concerts and going on walks at night with Kanon.
** Her special skills are her flexible body and knowledge on yogurt.
** She likes yogurt, vegetables, carbonara, and foreign dramas.
** She dislikes pudding and people mentioning that Kanon is an idiot.
== Gallery ==
Rikkaspinoffnovel.jpg
Eupho_Diary.jpg
Mion_Saijyou1.jpg
Mion novel.png
Rikka sunfes s3-2.jpg
Category:Female
Category:First Years
Category:Rikka High School
Category:Characters
Category:Oboists
Category:Concert Band Members
Category:Woodwind Players
Category:Novel Characters