Full name: Mafuyu Asahina. A 17-year-old female, 162cm tall, and a third-year high school student. She is a girl with purple hair tied back in a ponytail.

She wears a black-based skirt style with floral decorations along the hem.

She attends Miyamasuzaka Girls' Academy, and even within this college-prep school, her grades are exceptionally high. She serves as a class representative and is well-regarded for her consideration and interactions with others. Her skills in the Kyudo (archery) club are extremely high, and she possesses great athletic ability. With a sense of humor that allows her to trade jokes, she is the quintessential "honor student"—gifted in both literary and military arts, beautiful and intelligent—relied upon by everyone around her.