|Portrayed by||Ms. Risque|
|Dislikes||Perverts, sexists, meat, spiders, pigeons|
Unlike people of her age, Rosie has shown a more mature attitude, usually calm and collected even when someone is acting tense in front of her. However, she can also show a much more timid side at times. She has been described as a tsundere by Josh time to time. She has proven to be greatly annoyed by Josh's paranoiac tendencies and flustered because of him in certain situations.
Rosie is an 18-year-old female with hip-length mahogany hair (red in the anime) and bright blue irises. She prefers to let her hair hang loose.
She has an unusual fashion statement; with her outfit being composed of a white long sleeve dress shirt that is blue colored at the rims of the collars. Her shirt is tucked into a pair of black shorts, that is held up by a white belt with a gold buckle. She also wears a red tie that reaches to the point of her belt, as well as a long khaki sweater that reaches to her upper thigh. She has black and white straps at the end of both sleeves and the rim. She has a habit of wearing her sweater so that the back portion dangles to her back and is only kept from falling by a pair of belt-like accessories on her arms. She also wears thick black tights and a pair of black boots to complete her outfit. This is a modified variant of the Ayamein High School for Girls uniform, where she studied on a foreign visitation program.