hiyama miu

Character from the 2017 original anime Seiren.

Has brown eyes and long, messy light brown hair tied into a ponytail with long sidelocks. She wears no cardigan, only a simple white shirt and necktie.

From the early character reveals on ANN :

ANN said:
An "elite girls' high school swimming club member." She is in class 2-D at Sakuragawa Higashi Girls' High School, a high-class school. She is ignorant of the ways of the world. She has always attended a girls' school, so she is jealous of those who go to co-ed schools.

She is voiced by Izawa Shiori.