After several days of rest, Yamanaka Tohru finally recovered from the effects of using the Ice Colossus.
The Ice Colossus technique was a considerable burden for Yamanaka Tohru at his current level. Controlling such a vast amount of Nature Energy wasn't easy. It required not only immense mental strength but also tremendous physical stamina.
Yamanaka Tohru used his body as the core to construct the Ice Colossus, then merged his entire body with it. This allowed him to control the Ice Colossus perfectly, but it consumed vast amounts of stamina and Chakra.
A few days earlier, Yamanaka Tohru had maintained the Ice Colossus for only ten minutes, yet it had drained him badly. While inside the Colossus, the Nature Energy sustained him, so he hadn't noticed anything wrong. It was only after the Colossus vanished that he realized he was completely spent.
His physical exhaustion left him unable to even gather Chakra. He had to lie in bed for several days before he recovered, and his Chakra began to gather normally again.
But there was a silver lining. Since his body had merged directly with Nature Energy, his Chakra reserves had increased considerably. They were now on par with those of an ordinary Elite Jonin.
The first thing Yamanaka Tohru did after recovering was replenish the Nature Energy in his Yin Seal. Without the Nature Energy stored in the Yin Seal, he couldn't use Sage Mode, and his Ice Release techniques consumed enormous amounts of Chakra.
Hatake Sakumo and Jiraiya both knew Yamanaka Tohru needed time to recover. Besides, the Sand Shinobi hadn't made any moves lately, so they didn't need his help.
The Nature Energy around Konoha Camp was far less concentrated than at Mount Myōboku or in Konoha. It took Yamanaka Tohru nearly a month to fill his