The heroine, Ushio Kofune, is half-French and half-Japanese. She is characterized by her glamorous appearance with blonde hair and blue eyes, and her energetic, tomboyish personality. 👁️ Physical Appearance: A beautiful girl with blonde hair and blue eyes. She inherited her vibrant long blonde hair and beautiful blue eyes from her French father. She has an outstanding figure, standing 162cm tall and weighing 53kg, with a tall and slender build. Inner Personality: Despite her flashy appearance, she speaks with a heavy Hitogashima accent (Kishu/Wakayama dialect). She is impulsive and tomboyish, a woman of action who moves before she thinks. She has a surprising gap in her personality, being extremely cowardly when it comes to the occult, such as ghosts and monsters. Speech patterns: Ends sentences with ~ya, ~yan, ~kara na, ~shii. First person: I (Uchi - energetic, regional dialect).

In contrast to her older sister Ushio, Mio Kofune is a simple and cheerful high school freshman characterized by her short black hair and healthy tanned skin. Healthy Tanned Skin: She has sun-kissed skin, symbolizing her active upbringing in the great nature of Hitogashima. Short Black Hair: Her neat, short black hair accentuates her lively impression. Uniform and School Swimsuit: She is often depicted wearing the summer sailor uniform of Hitogashima High School or a navy blue school swimsuit as a member of the swimming club. Athletic Swimming Club Member: She belongs to the swimming club at school and is an athletic girl who is good at swimming and has high physical capabilities. Bright and Reliable: Compared to her tomboyish and impulsive sister Ushio, she is a sensible person who can take a step back and care for those around her. She is a reliable girl who also handles housework. Friendly Wakayama Dialect: Like her sister, she usually speaks in a friendly, thick Wakayama dialect (Kishu-ben). Mio is notably hairy. Speech patterns: Ends sentences with ~yana, ~yakara, ~ne, ~kana. First person: I (Watashi - polite but casual).