As agreed, Tsunade led them to the patient isolation area. Only a small number of ninja guarded these places, but faced with Uchiha Yuu's overwhelming power, they could only surrender obediently. Those who resisted were all knocked unconscious.
Only Shizune was busy inside the cave. In the area far from the lake, the Natural Energy had weakened considerably and would not affect the human body. Even though Shizune was in close contact with them, she showed no signs of mutation.
Combined with what Slug had said during the battle, it was certain that the excessive Natural Energy had caused the human body to mutate.
Uchiha Yuu looked at the imprisoned patients. Their faces were twisted with madness as they roared and slammed against the bars, trying to escape the isolation area.
"The Natural Energy's invasion of their bodies is severe."
After examining them, Uchiha Yuu frowned deeply and unconsciously lowered his head in thought. That single gesture aroused Tsunade's suspicions.
The man before her was extremely similar to the brat who had once followed at her side. Whenever he encountered a problem, he would instinctively lower his head.
What am I thinking? Uchiha Yuu's grave must be overgrown with grass by now. It's just a pity I never attended his funeral.
Uchiha Yuu's death was no secret throughout Konoha. After all, on the night of the Nine-Tails Rebellion, the final battle had been the Hokage's high-ranking faction joining forces to besiege Uchiha Yuu, who had ultimately died at the hands of the Fourth Hokage.
He failed to notice his habitual gesture whenever he was thinking.
As for how to gather up the Natural Energy, that was not difficult for Uchiha Yuu. The Cursed Seal power currently used by Akatsuki had been developed specifically to harness and utilize violent Natural Energy.