Nanae Hirohata is a student at Shirahamazaka Academy and serves as the president of the school's choir club. She has brown hair and brown eyes, and is of Japanese nationality. Nanae takes her role in the choir club very seriously, viewing it not only as a school activity but as something that could help launch her future career. She is disciplined and dedicated to maintaining the club's standards. She holds a strong dislike for Konatsu Miyamoto, seeing Konatsu as lacking the necessary passion for music and as a disruptive presence in the club. This puts Nanae in an antagonistic position toward Konatsu's efforts to reform the choir club. Nanae works closely with Vice-Principal Naoko Takakura, who shares her strict approach. Over the course of the series, Nanae's initial rigid stance softens as she observes Konatsu's genuine love for singing and the efforts of the new combined club, though the full details of her development are limited. As choir club president, she has competent singing and leadership abilities, and she is organized in managing club activities and rehearsals.