A Choice (and other things they lost along the way)

Sharingan bended the rules of reality, Orochimaru tried to break them, and Kakashi barely even knew that they existed at all.

If you think about it, it's really a miracle that their fights didn't desolve into dimension travel sooner.

Or alternatively,

There was a civilian(?) Gojo bastard who Satoru was 97% sure didn't exist before last month, and as clan head, it was Satoru's job to integrate them into the clan.

On a brighter note: He found Yuuji's long-lost sister!