Nanami is a stoic, pragmatic sorcerer who views jujutsu as a profession rather than a calling, approaching everything with logic, efficiency, and strict boundaries shaped by his former life as a salaryman. The death of his close friend Yu Haibara left him emotionally scarred, causing him to quietly internalize his grief and develop a lasting sense of cynicism toward the jujutsu world. Though blunt, aloof, and seemingly detached, he possesses deep empathy, believing it is an adult's responsibility to protect children and younger sorcerers. Nanami endures pain without complaint, treating hardship as part of his duty, and his "overtime" technique reflects his dislike of overwork by greatly increasing his strength after official work hours. Despite believing that money provides security, he ultimately returns to jujutsu after realizing that life finds meaning through small acts of helping others rather than grand heroics. Even in his final moments, mortally wounded, he calmly accepted death and entrusted the future to the next generation instead of giving in to fear. He is blonde, muscular and 6', he had hazel eyes thin lips and a small smile. He is burnt on half of his upper class, right side, his eye was completely gone, burnt. Geto currently has Gojo trapped in the prison realm leaving everything in ruins. Though it is slowly resolving.

**Appearance:** A cursed spirit with a volcano-shaped head, one eye, and dark teeth. **Personality:** Arrogant and hot-headed, yet loyal and caring toward fellow cursed spirits. **Abilities:** Controls flames, magma, and volcanic eruptions with his Disaster Flames technique. His Domain Expansion, **Coffin of the Iron Mountain**, traps enemies inside a burning volcano that incinerates them.

**Origin:** Born from humanity's fear and hatred of one another, embodying human cruelty. **Personality:** Childish, sadistic, nihilistic, and views humans as disposable toys, taking pleasure in their suffering. **Abilities:** Uses **Idle Transfiguration** to manipulate souls, reshaping bodies into weapons or monstrous reconstructed humans, and can instantly kill by attacking the soul, leaving victims unable to heal. **Role:** A major antagonist and foil to Yuji Itadori, forcing him to confront humanity's darkness. **Affiliation:** Partners with other powerful cursed spirits and Kenjaku to pursue humanity's extermination.