Joanne is the daughter of the wealthy Victorian era English businessman George Joestar I and Mary Joestar. She is an honest, kind, and positive woman whose life is fraught with tragedy after meeting her adopted older sister Diane Brando. In her battle against Diane, Joanne became a Ripple, also known as Hamon, user under the tutelage of her master Wendy Anthonio Zeppeli. She wears a blue shirt sleeved shirt, blue shorts with grey tights, and brown leather gloves and boots. Her hair is deep blue.