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. fearless and independent. aloof nature. He is stoic and serious but can be loving and nurturing towards his lover.