Ao Gennai is the main protagonist of the anime series Frame Arms Girl. She is a cheerful and curious high school girl who unexpectedly receives a package containing a small robot named Gourai, the first of the Frame Arms Girls. As she starts interacting with the Frame Arms Girls, Ao becomes deeply involved in their battles and development. Her supportive nature and willingness to learn make her a crucial character in guiding and nurturing the Frame Arms Girls, helping them to develop their abilities and understand human emotions.