In his previous life, there was always one thing Yichen had never understood: why Naruto, who had been such trash when he first appeared, could improve so quickly.
If it was because his Chakra Amount far exceeded that of ordinary people, then Naruto's Chakra Amount had already surpassed that of Jonin from the very beginning.
Now, Yichen understood. His realm had not been high enough.
Only when a ninja met the standard in terms of willpower and mental power could they better unleash their own strength.
Otherwise, no matter how much Chakra they had, they would forever be nothing more than a Genin.
There had always been a misunderstanding in his previous life—that ninja had a period of rapid growth in strength around the ages of fourteen or fifteen.
Most of the Konoha 11 in the original story had experienced explosive growth during that period, then basically reached the level of Special Jonin or even Jonin.
In truth, this period of rapid growth had little to do with age. It was mainly caused by increased life experience, deeper insights, and firmer willpower.
Some ninja who had special experiences in childhood, such as Kakashi, Neji, and Gaara, had actually already gone through that rapid increase in strength before reaching that age.
Now, Yichen could feel that change too—the change where he could sense himself improving every day.
Yichen was not a real child. Growing and gaining insights like a child was difficult for him, and ordinary emotional stimulation could not bring about results.
Originally, Yichen might only have truly comprehended the willpower of a Jonin when fighting an enemy to the death, under the pressure of a life-and-death crisis.
But no one had expected that after experiencing the power of a Jonin casting A-rank Ninjutsu at close range, Yichen would actually