Hina Chouno is a main supporting character in the manga and anime series Ao no Hako (Blue Box). She is a cheerful, athletic, and kind-hearted girl who is a member of the badminton club at Eimei Junior and Senior High School. Hina is known for her energetic personality and her deep feelings for the protagonist, Taiki Inomata, with whom she shares a close childhood friendship. Her emotional journey and unrequited love form a significant subplot and add depth to the series’ themes of youth, sports, and romance.