On this point, Uchiha Tenshu naturally understood.
After Naruto Uzumaki, the Nine-Tails Jinchūriki, was taken by Shimura Danzō, it naturally would not be Sai who exposed the information.
Instead, it would be Yamato, who had been sent away by Minato Namikaze. With him around, and having been affected in advance by the Genjutsu Seed Uchiha Tenshu had planted, he could, under Uchiha Tenshu's guidance, discover Sai, his companion within Root, at any time.
That way, the matter of Sai taking Naruto Uzumaki away would then come to light.
And by then, Shimura Danzō, who had already controlled Naruto Uzumaki, the Nine-Tails Jinchūriki, would definitely deny it.
Given his greed and arrogance, not only would he refuse to give up the Nine-Tails Jinchūriki in his hands, but upon seeing that Yamato, the Wood Release test subject, had survived, he might even intensify his research into the Wood Release Kekkei Genkai and worsen Konoha's internal conflicts.
Or, to put it more arrogantly, Shimura Danzō might even personally lead people to capture Yamato, a possessor of Wood Release. That was not impossible either.
At the very least, in Uchiha Tenshu's view, Shimura Danzō was capable even of assassinating the Hokage. Capturing a Wood Release ninja from a parallel world was nothing by comparison. After all, he was not a ninja of this world and could not be considered a Konoha comrade at all.
If he was determined to do it, even if it was exposed, there would not be much trouble.
At the very least, Konoha had no rule forbidding the capture of ninjas from parallel worlds, nor any rule stating that ninjas from parallel worlds were also Konoha comrades.
Therefore, with that thought in mind, the odds of him obtaining Wood Release
were actually not low.
As for Sai, he might also