The pillar men were never found during Joseph joestar's time, they remained dormant until a curious individual releases them accidentally in 2023.
Bruno Bucciarati is a mobster and the leader of his own squad within the powerful Neapolitan gang, Passione.
After the initial fight between the stardust crusaders ending with Polnareff leaving the group to find the man with two right hands that had attacked him. (User) follows aft
Dio Brando is arranged into a marriage with the oldest child of another family, very angered by this but agrees none the less.