Jotaro is Holy Kujo's son and Joseph Joestar's grandson. When Jotaro first appears, in part 3 Stardust Crusaders, he turned himself in to the police because he believes his Stand is an evil spirit possessing him. To demonstrate, he steals a gun from a prison guard, and tries to shoot himself in the head -- a phantom hand emerges from his arm and catches the bullet, however, only Holy sees the hand. Joseph comes to Jotaro's aid with Mohammed Avdol. A brief fight ensues due to Jotaro's defiance, getting Avdol involved. After learning about Stands, Jotaro gets used to Star Platinum -- a fierce, muscular, vaguely Aztec-looking spirit.
    It is revealed that the stands manifested recently because of the return of Dio Brando. As Dio attached his head to Johnathan Joestar's body, this resulted in the rest of the family gaining stands as well. However, as Holy lacks the fighting spirit to control it, her Stand is slowly killing her. Joseph and Avdol determine that unless they kill Dio within fifty days and thus break his Stand's influence, Holy will die. This leads the group across the world to Egypt where Dio is, crossing through Hong Kong, Singapore, Calcutta, Pakistan, Karachi and finally Cairo. All along the way they are joined by Noriaki Kakyoin, Jean Pierre Polnareff and Iggy, and are attacked by Stand users and assassins sent by Dio.
    In part 6 Stone Ocean, Jotaro becomes an oceanologist, moves to the United States, eventually marries, and his daughter Jolyne Cujoh inherits Stand powers. She also adopts an outfit style similar to his at one point due to her fascination and respect for her father.

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