Passione

Story
Passione is a Italian Mafia gang created by The Boss. In order to join Passione, one must pass the 24 Hour test mandated by Polpo; which includes trying to keep a lighter lit for 24 hours. If one fails to do so, Polpo's stand (Black Sabbath) will automatically activate, searching for anyone who steps into the shadows and will stab them with the Arrow. If it succeeds, the person will turn into a stand user if they have enough spiritual energy. If they do not, they will die painfully.

It's through Giorno's actions that the Passione members he meets slowly change and become his comrades, becoming more than willing to betray the boss.