Birthdate: 23 January, 1908 (manga), 1912 (anime)
Age: 18 (manga), 16 (anime)
Family: Parents (both deceased), Joshua Christopher (brother)
Place of Origin: United States
Likes: Exploring, food, Chrno
Personality traits: Dedicated, stubborn, clumsy, sweet, caring, tender

The impulsive, 16-year-old, protagonist of Chrno Crusade. Rosette is an elite exorcist of the Order of Magdalene and goes out on missions to destroy deadly spirits and devils. Her primary motivation is to save her brother Joshua, who has been captured by Aion.