Jolyne is the main protagonist of the sixth part of JoJo's Bizarre Adventure series. She is the daughter of Joutarou Kuujou, and is the only female "JoJo" to date.

Quick to anger and snappy with her elders, it seemed like Jolyne was a lost cause. She was irresponsible and flighty, at first only looking to satisfy a cheap thrill. Bitter at Joutarou for leaving the family for so long, she blamed him for her misguided outlook. However, she still had honorable morales and treasured her mother. She would selflessly do everything in her power to help her friends. Jolyne believed that her loved ones had a good heart and an honest nature. Unfortunately, she can believe in them to the point of being gullible as it was through Romeo's lies that she was sentenced to a prison sentence of 15 years.