Sanae Yashiki

is a side character of Sound! Euphonium: The Movie - Our Promise: A Brand New Day film. She is a new first-year at Kitauji High School. She joins the band as a hornist in Kumiko's second year.
== Personality ==
Sanae is an experienced horn player from Minami Junior High School who gets along well with the clarinetists Ayako Sakasaki and Shiori Hiranuma since they're in the same class. 
== Etymology ==
* The name Sanae is written in hiragana (さなえ), which has no special meaning.
* Sanae's surname Yashiki means "mansion" (屋敷). 
== Trivia ==
*Sanae loves playing with her hair so she'll do it daily while studying. 
*Sanae was the only first-year horn to make the audition.
== Gallery ==
S3 horn members.jpg
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Category:Characters
Category:Female
Category:Brass Players
Category:Horn Players
Category:First Years
Category:New Members
Category:Kitauji High School
Category:Concert Band Members
Category:Minami Alumni
Category:Liz and the Blue Bird Performer