Ever since he transmigrated to the ninja world, Asahi had made a lot of assumptions about the mystery of chakra. During his years in the academy, he also continuously verified his hypotheses through practice.
From the perspective of the original anime, chakra could not only be used for five elemental ninjutsu, but also for Ying-Yang Jutsu, Sealing Jutsu and various Forbidden Jutsu.
S-rank ninjutsu, such as [Impure World Reincarnation] and [Flying Thunder God], have clearly exceeded the concept of an ordinary ninjutsu and have almost touched the field of a 'Transcendence'.
If chakra was really a kind of special energy produced by the combination of human spiritual energy and physical energy, as stated in the textbooks, then for chakra to achieve this rank of ninjutsu, was a violation of common sense.
So Asahi believed Madara's claim that the Divine Tree was the root of all chakra, and all of the ninjas in the ninja world inherited chakra which originated from the Divine Tree.
(T.L Note: The M.C. here doesn't know about Boruto and Otsutsukis from outer-space)
It wasn't until Otsutsuki Kaguya stole the Divine Tree's fruit that chakra started appear in humans.
To put it simply, chakra originally did not belong to humans, but after the Divine Tree disappeared, chakra within the human's body naturally continued to thrive. Ninja could extract chakra in within their bodies and use it by some special methods.
However, this statement seemed a bit mysterious. Although Asahi had seen the original anime, he had not studied it thoroughly. However, this time now that he had personally transmigrated to Naruto World, Asahi must thoroughly study the properties of chakra.
Although these were speculations by Asahi, they could not be revealed. After all, Asahi was now just an eight year old little ninja. Insight beyond peers could also be understood as a gap between a genius and an ordinary person, but if he knew too many mysteries, he might be suspected and put under surveillance.
Shaking his head, Asahi slowly said, "I don't understand much other than what I learned in the academy. But when using chakra, I always feel that it also exists in nature, it is a kind of faint feeling, but I can't really explain how. "
"Chakra in nature?" Ueno slightly frowned, this was somewhat difficult for him to understand.
"How is that possible?" Shinohara cried out in surprise, saying, "Isn't chakra just a combination of spiritual energy and physical energy, how can chakra also exist in nature? Asahi, can you really feel it?"
'I feel my foot.'
The reason why Asahi said this was let Ueno know and pass this idea to the Third Hokage's ears.
When did Jiraiya started learning Senjutsu? Asahi didn't know for sure. But since Jiraiya signed a summoning contract with the toads of Mount Myōboku, maybe he already knew about the existence of Senjutsu.
As long as this was heard by either Jiraiya or Orochimaru, as long as they were interested in Senjutsu, they might come to Asahi.
"I can't really explain, it's just a feeling." Asahi lightly said with a smile, "Forget it, let's not talk about it, Ueno-sensei, let's start today's class!"
"Okay then." Ueno nodded and said solemnly, "Chakra is an important prequisite for ninjutsu, so refined control of chakra is very important for a ninja. For example, if for one jutsu, it costs 30% of chakra when used, if the chakra is not controlled well, it can consume 40% of chakra or even more. So how to accurately control chakra is a required course for ninjas."
"How do we train chakra-control?" Shinohara curiously asked.
Ueno said, "Your chakra reserves were not enough before this, so it was not suitable for this kind of training, but after this last mission, I think you are qualified. Today's training topic is - Tree Climbing!"
'It really is tree climbing.'
When his chakra was first refined, Asahi wanted to use this method to exercise chakra control, but at that time his chakra reserves were very small and it simply couldn't support his body, so he gave up.
Later, Asahi found that he had very strong on chakra control, so he did not use the tree climbing training method for the time being.
"Tree climbing?" Shinohara heard this and complained, "Can this be considered training?"
"Of course it's not ordinary tree climbing, but..." While speaking, Ueno had climbed up a large tree with only his feet and stood high above his students with his body stable. "This way you can precisely exercise chakra control, you two, try it."
Asahi hearing Ueno's purpose, controlled chakra to gather on the soles of his feet to form an attraction force.
At first it was a bit difficult, but with a little adaptation, Asahi learned the trick.
It was not enough just to control the chakra to let the soles of the feet stuck on the tree trunk. The most important thing was to maintain a constant output of this chakra. Once there was too little chakra to support the user, the user would fall off the tree. If the user uses too much chakra, it would leave a mark on the tree.
"I can stand! Nooo!" After falling down several times in a row, Shinohara looked at Asahi who could already hang upside down on the tree, with a smile growing on his mouth, showing off as if it was a matter of course.
"Oh, Shinohara, it looks like you've been surpassed by the younger generation." Ueno helped Asahi pull hatred without fear.
"Dammit!" Shinohara clenched his teeth, and then ran up again to the tree, but before rushing a few steps, he fell off the tree.
Asahi said strangely, "Shinohara, didn't you learn medical ninjutsu? Learning medical ninjutsu requires precise chakra control, you ..."
Without waiting for Asahi to finish, Ueno responded him, "If he had such a strong chakra control, his mother would have taken him away as a medical-nin, why would he risk himself to execute missions."
'So that's how it is!' Asahi secretly thought.
"Well, I'll take Asahi for the next training. You have to work hard, don't be lazy!" Ueno waved at Shinohara and then took Asahi away.
"Dammit, you two just wait for me!" Shinohara looked at Asahi's back, shouting resentfully.
Ueno took Asahi to a small river and said casually, "You can adapt to the tree climbing training so quickly, so something like water surface walking should not be big of a challenge for you."
Then Ueno headed directly to the water and gave a demonstration to Asahi.
"In this training, one should gather chakra on the soles of their feet, forming a repulsive force, and keep themselves from falling into the water. However, the difficulty is to continuously adjust chakra with the fluctuation of the water flow. Although this training is similar to tree climbing, the difficulty is several times harder." Asahi analyzed.
"Very keen analysis, tree climbing exercises chakra's maintenance, water surface walking exercises chakra's adjustment, now try it." Ueno said.
"Yes!"
*****
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