Nanami Ootaki

Nanami Ootaki (大滝 七海) 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 an alto saxophonist in Kumiko's second year.

Personality
Nanami is not used to being praised, so she takes a blunt attitude towards others to hide her embarrassment. She watches over her fellow alto-sax player Seiya Suzuki to ensure he doesn't bother other sections.

Etymology

 * The name Nanami means "seven" (七) (nana) and "sea, ocean" (海) (mi).
 * Nanami's surname Ootaki means "big, great" (大) (oo) and "waterfall" (滝) (taki).