Yano-sensei teaches music at the elementary school where Hibiki Morishima is a student. She's basically the reason Hibiki decided to become a healer—Yano-sensei's influence was pretty formative for her. Not much else is widely known about her background or personal life, but fans recognize her as an important figure in Hibiki's origin story.
Content compiled by AnimeList.moe from publicly available sources.
