Sound! Euphonium: Welcome to Rikka High School Marching Band is a spin-off novel of the Sound! Euphonium series published in two volumes. The first volume[note 1] was published on August 4, 2016, while the second volume[note 2] was published on September 6, 2016 by Takarajimasha.
The story focuses on Rikka High School Marching Band. Azusa Sasaki, Kumiko's friend from the middle school, is the main character of this novel. The story is set in about the same time as the main series but it is told from Rikka High School's perspective instead of Kitauji's.
- Hibike! Yūfoniamu Shirīzu Rikka Kōkō Māchingu Bando e Yōkoso Zenpen (け！ ユーフォニアムシリーズ 立華高校マーチングバンドへようこそ 前編) (Japanese). Takarajimasha. Retrieved on February 10, 2021.
- Hibike! Yūfoniamu Shirīzu Rikka Kōkō Māchingu Bando e Yōkoso Kōhen (け！ ユーフォニアムシリーズ 立華高校マーチングバンドへようこそ 後編) (Japanese). Takarajimasha. Retrieved on February 10, 2021.
|Sound! Euphonium by Ayano Takeda|
|Kitauji High School|
|Rikka High School|