Narumi Hiraishi

Narumi Hiraishi (平石 成美) is a side character of Sound! Euphonium. She is a new first-year at Kitauji High School who joins the band as a flautist in Kumiko Oumae's second year.

Personality
Narumi joined the band with no experience playing an instrument. With her quick wits and because she's looking around at everyone, she's become the unsung hero supporting the flute section.

Etymology

 * The name Narumi means "become" (成) (naru) and "beautiful" (美) (mi).
 * Narumi's surname Hiraishi means "flat" (平) (hira) and "stone" (石) (ishi).