Sumiko Fukamachi

Sumiko Fukamachi (深町 スミ子) 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 hornist in Kumiko Oumae's second year.

Personality
Sumiko is bad at studying that she always gets poor marks on her tests. Even with Aine Kohara instructing her, there's no change in the results.

Etymology

 * Sumiko's surname Fukamachi means "deep" (深) (fuka) and "town" (町) (machi).

Trivia

 * Sumiko's best subject is PE.