Futaba Sakura is a major character in the video game and anime series Persona 5. She is a genius-level hacker who initially isolates herself from the world due to past trauma. Known as the Phantom Thieves' 'Oracle,' Futaba supports the team with her exceptional skills in hacking and navigation. Despite her introverted nature, she gradually learns to open up to the group, forming strong bonds with them. Her journey of overcoming personal fears and gaining confidence is central to her character development in the series.