Motoko Higashiura (東浦 心子 Higashiura Motoko) 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 percussionist in Kumiko's second year.
Motoko is in the same class as the oboist Ririka Kenzaki. Occasionally, their homeroom teacher will liven it up as “Grandpa-sensei”. She has played percussion since middle school, so her sense of rhythm is exceptionally good. She got hit in the head with a baseball when she was 8 years old.
- The name Motoko means "heart, mind, soul" (心) (moto) and "child" (子) (ko).
- Motoko's surname Higashiura means "east" (東) (higashi) and "inlet, bay, gulf, creek, cove" (浦) (ura).
|Kitauji High School Concert Band during Kumiko Oumae's second year|
|Note: Section leaders are shown in bold text|