Olympe Bijou is a 16 year-old girl and a working acquaintance of Josépha Mariah. Another very pretty girl, Mademoiselle Bijou also has the distinction of being the fourth of Baron Hector Hulot d'Ervy's mistresses. Olympe enters into a living arrangement with Hulot at the suggestion of Josépha Mariah. Hulot then changes his name to Monsieur Thoul. Backed by funds given to Mariah by her lover the Duke d'Hérouville, Olympe Bijou owns a small embroidery business which Hulot oversees. Some time later, Hulot leaves Bijou and she falls in with a pimp named Idamore. Shortly thereafter, Hulot leaves Mademoiselle Bijou for Élodie, the pimp's sister. Eventually, Olympe Bijou becomes the lawful wife of a Monsieur Grenouville.