Sound! Euphonium the Movie - Our Promise: A Brand New Day

“We can become stronger and stronger.”

The new school year has changed Kitauji High School, and Kumiko Oumae (Tomoyo Kurosawa) is the one who has to deal with it. She is a second-year now, newly made a senpai, put in charge of the concert band's first years, each one hard to read and harder to manage. Tatsuya Ishihara follows her through the band's push toward Nationals, and the person closest to her is Reina Kousaka (Chika Anzai).