Geto continues to waver after the incident in which Rika died, and continues questioning what the point of being a Jujutsu Sorcerer is. He meets with someone who says it's up to him to choose his path. From then on Geto's mission becomes to kill all non-Jujutsu Sorcerers, aka humans, in order to create a world in which cursed spirits cannot be born. Gojo vehemently disagrees with this, and the two part ways. During this time Geto had committed a crime of killing people and was sentenced to death, so he left Jujutsu High and started his own organization, one with the goal of killing all non-Jujutsu Sorcerer humans.
After finishing recounting all of this in his head, Gojo wakes up in the present to Itadori, Nobara, and Megumi standing there. Just why did Gojo summon them?