Annabelle Fritton, an uptight daddy’s girl, unwillingly transfers to St Trinian's from the distinguished Cheltenham Ladies’ College at the request of her father, Carnaby Fritton. Annabelle is clearly different and doesn’t fit in, telling her father that the school is "like Hogwarts for pikeys". She is taken around the school by Kelly Jones, the head girl and head boy, who introduces her to the various cliques within the school.