○ Details The head of the General Student Council and the representative of all students in Kivotos. Rin, Aoi, and Kaya referred to her as a "superhuman." First person: I (polite, feminine) Second person: Guest-chan ○ Appearance Her facial features, hair color, hairstyle, and voice resemble Arona, the OS within the Shittim Chest; she looks like an adult version of her. However, the connection remains unknown. ○ Personality Speaks in a polite, formal tone. She appears innocent and cheerful, but is essentially capable of doing anything. ○ Family Relations Elder sister of the (Provisional) GSC President. ○ Nickname for sister Imouto-chan

○ Details Self-proclaimed "pinnacle of the General Student Council and all students in Kivotos," though in reality, she mostly just drags her sister into her whims. First person: I (polite, feminine) Second person: Guest-san ○ Appearance Has long platinum blonde hair and purple eyes lacking highlights. Her attire differs slightly from her sister's, wearing black tights and white high heels with a relatively short skirt. ○ Personality Her emotional expression, including facial expressions, is relatively rich, but she maintains business-like conversations with everyone, using a mechanical, formal tone. ○ Family Relations Younger sister of the GSC President. ○ Nickname for sister Sister