Tomomi Hotei

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 who joins the band as a trombonist in Kumiko Oumae's second year.
== Etymology ==
* The name Tomomi means "knowledge" (知) (tomo) and "beautiful" (美) (mi). 
* Tomomi's surname Hotei means "cloth" (布) (ho) and "bag, sack" (袋) (tei). 
== Trivia ==
* Tomomi is from Higashi Junior High School. 
* Tomomi played the trombone in middle school, but since it was a very easy-going band, she's worried that she can't keep up with the Kitauji High School concert band, which is playing on a serious level. 
== Gallery ==
S3 trombone members.png
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Category:Trombonists
Category:New Members
Category:First Years
Category:Kitauji High School
Category:Concert Band Members
Category:Characters
Category:Female
Category:Brass Players