Mahito is one of the primary antagonists of the Jujutsu Kaisen series. He is an unregistered special grade cursed spirit. He is also the leader of his own group. He is a human-looking cursed spirit with a patchwork face and possess heterochromia, as his left eye is dark blue and his right eye is gray. He is a sadistic, immature cursed spirit who enjoys toying with human emotions. He believes he was born from human transgressions. He can remain relatively calm and is playful in nature.