Akira Hino

A classmate and friend of Shimamura since high school. Petite, the animal Shimamura imagines her as is a "squirrel."

She often encounters "weird people" due to her easygoing nature, never lacking in conversation topics, and she introduced Yashiro to Shimamura. She feels awkward about the distance with Adachi, whom she met through Shimamura, but they have become friends through Shimamura.

She lives in a large, traditional Japanese house with a distinguished history, which is reflected in her refined upbringing evident from her formal speech, knowledge of dining etiquette, and ability to dress in a kimono by herself. Although generally satisfied with her life, she feels constrained by her old-fashioned family and spends time at Nagafuji's house whenever she has no family obligations.