At this critical moment, the natural energy affinity attribute possessed by Uzumaki Naruto finally came into play. Because the natural energy making up the acid fog of Shikkotsu Forest was naturally attuned to Uzumaki Naruto, it did not actively launch any attacks against him.
Seeing this, the split of the Slug Sage, clinging to Uzumaki Naruto's shoulder at that moment, became even more certain that Uzumaki Naruto would definitely succeed in mastering the Senjutsu of the Slug Clan.
In the eyes of the Slug Sage, Uzumaki Naruto possessed a special constitution with a natural affinity for natural energy, and this rare constitution, unparalleled in both ancient and modern times, was simply tailor-made for practicing Sage Mode!
Chapter 133