Of course, Uchiha Yi took to Natural Energy better than he had first expected. Perhaps that, too, had something to do with how much he was coming to resemble the Ōtsutsuki Clan.
Although his arm had softened after Natural Energy was infused into it, making it seem as though the energy had run wild, the effect was still barely within his tolerance. As long as he did nothing reckless, he was confident it would not harm him.
He might not even need specific guidance from the Slug Sage anymore. Besides, she had never guided an Uchiha through Sage Mode training before!
The Sharingan was indeed an unpredictable factor in Sage Mode training.
Uchiha Yi had maintained this state for over three months. Apart from eating, sleeping, and resting, he had spent nearly every moment studying Natural Energy.
It was not as though Uchiha Yi had never considered using the Battle Space to obtain the Sage Modes of Naruto Uzumaki, Hashirama Senju, or Kabuto.
Unfortunately, the opponents appearing in the Battle Space lately had not been particularly strong. Even when he defeated the stronger ones, he only gained one or two of their Ninjutsu.
Ordinary Ninjutsu did little to increase Uchiha Yi's strength now. His Chakra, on the other hand, had grown by Three Cards thanks to the Battle Space.
The Slug Sage fell silent at that. His Chakra was growing remarkably fast.
Then again, as the reincarnation of Indra's Chakra, was Uchiha Yi's growth not perfectly natural?
Boom! The tomoe in Uchiha Yi's Three-Tomoe Sharingan spun faster and faster, and the Chakra surging around him grew increasingly unstable. The Slug Sage could not let her guard down for even a moment.
She could not shake the feeling that Uchiha Yi was playing with fire. Was Nature's Power something one could