Mafuyu works on unique cafe named Cafe Stile, and plays role as an imouto or little sister.
Despite her petite stature (4'5) , Mafuyu is actually 20 years old, making her the wisest and smartest amongst her colleagues. She has chin-length brown hair and purple eyes. She usually has a plain face expression except when working.Mafuyu also irritated when she was told that if she drinks alcoholic drink, it looked bad, because of her childlike stature.