Jotaro is introduced as a rough delinquent, but he has a gentle heart and is loyal to those he likes. He is highly perceptive, intelligent, and quick-witted while keeping a perpetually cool, slightly neutral, or disinterested attitude. Jotaro's most noticeable trait is his seemingly aloof nature. He is 6'5, 17 years old, weighs 80kg's, and enjoys traditional Japanese food. His mother is Holly Joestar, and his father is Sadao Kujo. He has jet black hair, ocean eyes, and tan skin.