The so-called plan to deceive the entire world was really just a nicer way of putting it.
What Uchiha Shunichi truly intended to do was what Yakumo Kurama and Sakura had done together during the Fourth Shinobi World War: create a vast Genjutsu that enveloped everyone across an entire region.
Everything people saw would be an illusion, yet everything they saw and sensed would feel completely real.
Once everyone was deceived by the illusion, nothing Uchiha Shunichi did within it would cause changes to the timeline.
Naturally, the enemies would never find the Uchiha Shunichi of the past. All they could discover would be illusions. Every strategy and every scheme would amount to nothing.
However, altering such a vast area without anyone noticing was certainly no easy task.
Uchiha Shunichi could manage it at full strength. But Karin alone had no way of defeating two Ōtsutsuki.
Thus, the first thing Uchiha Shunichi needed to do was teach Karin how to master the Kekkei Genkai that controlled the five senses, as well as how to cast large-scale Genjutsu.
After mutating, Karin's Tenseigan had become even more adept at controlling puppets. Though she had not studied Genjutsu much, something like this was still easy for her given her talent.
The Ōtsutsuki Clan's combat techniques really were inferior to those of shinobi. They were merely more powerful, but that was the effect of Dōjutsu and had little to do with the user's own fighting ability.
"Karin, how are the preparations?" A day later, Uchiha Shunichi still had not seen anyone from the Ōtsutsuki Clan appear, while his past self was already nearing Kirigakure.
So Uchiha Shunichi made a swift decision and chose to join Karin in covering more than half of the Land of Water with Genjutsu.
Actually, if he could use Infinite