Jougo

An unregistered special grade cursed spirit born from the fear of the earth.

A one-eyed, small-statured male humanoid. The top of his head resembles a volcano, and he always wears earplugs. He understands human speech.

He calls humans who show their positive emotions (public face) and hide their negative emotions (true feelings) "fakes," believing that curses born from these negative emotions are the true humans, and thus views humans as beings that should be destroyed. He also believes that "walking an honest path without fear of death for one's purpose is the essence of a curse," and does not hesitate to sacrifice himself if necessary. He has a hobby of collecting cursed objects.

He is a practitioner of a technique that creates and manipulates flames and volcanoes. He is also very stubborn, quick-tempered, and prone to outbursts of passion, emitting high heat from the top of his head and ears when his emotions flare up. His domain expansion, "Iron Coffin Mountain Enclosure," instantly incinerates any average sorcerer who enters, ensuring a hit with extreme heat.

After Yuuji Itadori's death, he begins to collaborate with Fake Geto and Hanami. However, ignoring advice from Fake Geto, he attempts to kill Satoru Gojou alone but fails and is reduced to just a head, later rescued by Hanami. From then on, considering the risk that Sukuna might become their enemy, they plan to feed Yuuji Itadori Sukuna's fingers to revive Sukuna.

After Gojou is sealed during the Shibuya Incident, he feeds all ten of Sukuna's fingers he possesses to Yuuji Itadori to awaken Sukuna. He then fights Sukuna under the condition that if he lands even one hit, he will serve under the cursed spirit, but he is defeated and killed.