Hifumi Benibana attends Kokureikan High School. She possesses neck-length brown hair styled with bangs hanging over her eyebrows and has green eyes. Characterized by quiet timidity, she rarely speaks beyond brief utterances and consistently echoes Anne Kurusu's statements and decisions. Hifumi is a steadfast presence beside Anne, faithfully attending events like the Kanto Bouldering Championship in a supportive capacity.