"Hahaha~"
Hiruzen Sarutobi couldn't help but laugh out loud.
Looking at the gratitude and excitement in little Naruto's eyes.
Hiruzen Sarutobi couldn't help but think,
'Minato, your and Kushina's child is too outstanding.'
Hmm, Minato's 'comprehension,' the Jinchuriki Saint Body, Uzumaki Clan physique.
A stable and obedient Nine-Tails Jinchuriki is truly rare.
He glanced at the Chakra Refining Technique.
Although little Naruto's physique was excellent, a seal was still a seal.
Over time, if little Naruto was not allowed to refine Chakra, the seal would still loosen slightly, allowing the Nine-Tailed's Chakra to leak out.
"Well then, congratulations in advance on becoming a qualified Konoha Ninja~!" Hiruzen Sarutobi said with a light chuckle.
"Mhm~!"
"Thank you, Hokage Grandpa, I will definitely work hard to gain everyone's approval, then become Hokage, and also become a great hero like Hokage Grandpa!"
"Very good, then you must work hard~" Hiruzen Sarutobi smiled and added, "If there's anything you don't understand, you can come ask me."
"Okay~" Little Naruto quickly nodded.
Afterward, Hiruzen Sarutobi led little Naruto into the Hokage Building.
In the Hokage's office, Hiruzen Sarutobi brewed himself a cup of tea, then leaned against the window, enjoying the cool breeze, and lit his pipe.
He occasionally looked at little Naruto.
His smile was irrepressible.
And little Naruto was also eagerly flipping through the Chakra Refining Technique scroll.
'Shikamaru advised me that most of the time, I still need to learn to conceal my abilities.'
So, little Naruto went to Hiruzen Sarutobi with the scroll, pointing at the more obscure characters and asking him what they meant.
This made Hiruzen Sarutobi overjoyed, experiencing the feeling of being a mentor once again.
Before long, little Naruto finished reading the key points of the Chakra Refining Technique.
In short, Chakra was the product of the combination of spiritual energy and cellular energy.
These two energies mostly did not interact with each other; only by consciously controlling them could Chakra be refined.
If one did not learn the Chakra Refining Technique, they would not be able to use controllable Chakra.
Little Naruto frowned slightly.
'Spiritual energy? Cellular energy?'
'So, Chakra is actually an energy that can only be obtained by consuming one's own energy?'
'Will it cause great harm to the body?'
'The book says that at my age, I'm still growing... Shikamaru and the others also went to study, so it seems that this age can withstand the consumption, but if it's too much, it will definitely deplete the body's origin.'
'...'
Little Naruto kept thinking.
And everyone in the Ninja World also showed looks of surprise.
Uchiha Izuna: This child's comprehension is truly very high!
Uchiha Izuna: Little Ino, take him down! Help godfather revive the new Uchiha!
Ino Yamanaka: "..."
Senju Tobirama also couldn't help but agree: A Ninja is essentially an existence that exchanges life for power.
Senju Tobirama: If one learns Chakra too early and is not restrained, it will definitely deplete their origin.
Senju Tobirama: In our era, the lifespan of Ninja was not long, because of constant wars, so basically, every Ninja, from the moment they could remember, the first thing they did was learn the Chakra Refining Technique.
Senju Hashirama: So one of the purposes of establishing the Village was to protect the new generation. Madara and I once shared the same ideal.
Uchiha Madara: You're already dead, why are you still so long-winded.
Danzo Shimura: "You all don't know, Hiruzen actually sent a large number of children to fight!"
Senju Hashirama: Monkey, is what Danzo said true?!
Senju Hashirama: You actually let children go to the battlefield?!
Tsunade: "Nawaki died on the battlefield."
Boom—
This news, for Senju Hashirama and Senju Tobirama, was nothing short of a bolt from the blue.
No wonder Nawaki hadn't spoken until now.
Nawaki... Orochimaru's snake-like eyes narrowed slightly.
"Hokage Grandpa, Chakra cannot be stored... So, does a Ninja have to extract it first when they need to use it?" little Naruto asked.
Hiruzen Sarutobi nodded slightly and said, "Even in battle, it's the same."
"Learning the Chakra Refining Technique might not be very difficult; the difficult part is being able to make the Chakra Refining Technique instinctive."
"An excellent Ninja can quickly refine Chakra, and similarly, an excellent Ninja will also calculate their Chakra well. If Chakra is overused, it is very likely to lead to death, you know."
Little Naruto quickly nodded, saying he understood.
After asking Hiruzen Sarutobi several more questions, he sat cross-legged on the ground and tried to refine Chakra.
Little Naruto was not in a hurry; he didn't even immediately try the cultivation method from the Chakra Refining Technique. Instead, he constantly adjusted his breathing and his own state.
Hiruzen Sarutobi watched little Naruto with expectant eyes.
The physique of the Uzumaki and Senju Clans truly made people envious.
Others had Chakra, but they at least had 'Chadorra,' and even 'Chak-ton-ra' was common. As for 'Chakara,' perhaps one would be hard to find in a hundred years.
Chakara?
Kakashi frowned slightly.
Why did he have a bad feeling?
However, this narration did speak to his heart.
Having little Chakra was truly uncomfortable.
Of course, Kakashi's Chakra wasn't actually small; at least it was normal.
It was just that his Sharingan couldn't be turned off, constantly consuming Chakra.
In other words, Kakashi was passively refining Chakra at all times.
Otherwise, he wouldn't be called Kakashi, the "empty" one.
The unit 'one Ka' was actually Kakashi's own Chakra amount, minus the Chakra consumed by the Sharingan, leaving the remaining Chakra amount.
As a Ninjutsu professor, Hiruzen Sarutobi knew many Ninjutsu; otherwise, he wouldn't be worthy of his position.
However, all his skills were also accumulated through countless resources.
With Hiruzen Sarutobi's 'help,' little Naruto tried a few times and successfully refined Chakra.
That feeling... was very subtle!
Little Naruto quickly suppressed the inner desire and stopped refining Chakra.
Knowing that refining too much Chakra might deplete his origin, he was extremely restrained, even though the feeling of having Chakra was very comfortable.
Hiruzen Sarutobi was equally happy.
Little Naruto had refined Chakra, so there was no need to worry about the Nine-Tailed's seal anymore.
At least, there was no need to worry for a long time.
And little Naruto had already been 'controlled' by him, so there was no need to worry about little Naruto using Chakra to attack the villagers.
"Hokage Grandpa, am I too stupid?"
"You were definitely more amazing than me back then."
Little Naruto said with some disappointment, lowering his head.
Huh?!
Hiruzen Sarutobi's eyelids twitched.
Based on little Naruto's description just now, Hiruzen Sarutobi roughly estimated that if little Naruto knew how to use Ninjutsu, the amount he had just refined would be enough to activate one qualified Fire Release: Great Fireball Technique.
But... looking at little Naruto's lost yet expectant expression.
Hiruzen Sarutobi cleared his throat.
He gently placed a hand on little Naruto's head.
"Naruto, you've already done very well. Although you're still a little behind Grandpa when I was your age, you've already surpassed most people."
"Really?" Little Naruto's eyes lit up, and he quickly looked up and asked.
"Mhm!" Hiruzen Sarutobi nodded heavily.
"Alright, you still need to study the Will of Fire well. When you become a Ninja in the future, Grandpa will prepare many surprises for you~!"
"Hahaha~"
Hiruzen Sarutobi couldn't help but laugh himself.
Ino Yamanaka: "Shameless!"
Ino Yamanaka: "But Naruto's Chakra is indeed a lot~"
Sakura Haruno: "Yes, yes! Give me a reward of a hundredfold Chakra increase~!"
Ino Yamanaka: "Godfather, how does your Chakra compare to that of the Uzumaki Clan?"
Uchiha Izuna: A Ninja's strength is not determined by the amount of Chakra, but by its essence.
Senju Tobirama: Hmph! Then what would happen if Big Brother used Fire Release with his Chakra amount?
Uchiha Izuna: That's your brother! What does it have to do with you? Your Chakra amount isn't much more than mine either!
Uchiha Izuna: Little Ino, we shouldn't compare Chakra with those monsters like onii-chan. The Tailed Beast's Chakra is immense, right? It's just a glance.
Uchiha Izuna: Oh, didn't they just mention something about the Nine-Tails Rampage? That little fox, Godfather can make it obedient with just one glance.
Ino Yamanaka: "So amazing~!"
Uchiha Izuna felt pleased after being praised.
Uchiha Izuna: Tobirama, what about you?!
Senju Tobirama: Just a dead man under my blade.
Kurama: "You're full of crap!"
Uchiha Madara: Hmm?
Kurama: "Damn Uchiha Madara!"
Senju Hashirama: Give me some face, everyone stop arguing.