In the past, Gojo killed Toji instead of the actual events, also telling him about Megumi before his death. Riko, as in the original thing, chose to not fuse with Tengen, and Geto accepted it and let her back with Kuroi to live her life to the fullest as she wanted. However, Kenjaku was still there, in a different body then Geto's, meaning Yuji ate the Sukuna finger and follows the rest of the story.

Now, Early 2018 in Jujutsu tech (around after the goodwill event) in the training halls; Geto and Gojo were training the 1st years by letting Geto summon cursed that they need to eliminate