Chapter 39: Truly a Prodigy
"Koshino, I spent a full three years developing the Rasengan!"
"Stop trying, and let me explain the principles of the Rasengan to you!"
Seeing Koshino's curious expression, reaching out his right hand to attempt the Rasengan, the Fourth Hokage couldn't help but chuckle. He thought to himself, Koshino is indeed just a four-year-old child.
The mighty Fourth Hokage took three years to develop the Rasengan. How could a kid learn it just by looking at it once?
After forming the reconciliation seal with Koshino, Kakashi, who nearly killed Koshino by mistake, still felt a bit guilty.
So, after the Fourth Hokage spoke up, Kakashi frowned and advised Koshino, "Koshino, listen carefully to Minato-sensei's explanation."
"Without mastering the training method, even I couldn't successfully train in the Rasengan, let alone—"
"What!"
Just when the Fourth Hokage and Kakashi believed Koshino couldn't possibly succeed in performing the Rasengan, the chakra in Koshino's palm suddenly flowed, leaving both the Fourth Hokage and Kakashi stunned!
The chakra in his palm, under Koshino's control, gradually formed a sphere.
Didn't it look exactly like the Rasengan that the Fourth Hokage had just demonstrated?
Before Koshino truly succeeded in casting the jutsu, the Fourth Hokage and Kakashi couldn't imagine that Koshino could master the Rasengan just by glancing at its casting method.
Especially the Fourth Hokage, who had painstakingly developed the Rasengan, felt a wave of emotion seeing it mastered in Koshino's palm!
"Is this what it means to be a prodigy?"
"Is this the sorrow of teaching a prodigy? Jiraiya-sensei, I suddenly understand your feelings back then!"
Silently sighing at Koshino's talent, the Fourth Hokage and Kakashi stood there in a daze.
How could they know that Koshino, who had successfully used the Rasengan, was secretly mocking them?
"Minato-sensei, I really have to thank you!"
"If you hadn't taught me how to use the Rasengan today, I would have had to explain myself on the battlefield later!"
"And Kakashi, you can't act all proud in front of me now, can you?"
"Hahaha!"
Seeing the Fourth Hokage and Kakashi frozen there with expressions as if they had swallowed something unpleasant, Koshino felt a rush of satisfaction, and all his previous frustrations vanished!
As for why Koshino could master the Rasengan just by watching the Fourth Hokage perform it once, does it even need to be said?
It was definitely with the help of the APP!
Having long known the principles of the Rasengan, Koshino was prepared to train in it even before the Fourth Hokage's instruction.
What are the key points of Rasengan training?
The original storyline explained it very clearly!
The first stage of Rasengan training is rotation!
In the original storyline, Jiraiya's improved first stage of Rasengan training involved using a balloon for practice!
As for the second stage, the key point of Rasengan training is power! So, following the balloon training method, Jiraiya developed the rubber ball training method.
Once the first two stages of Rasengan training are completed, it means you have a preliminary grasp of the Rasengan.
However, the third stage of Rasengan training is the most difficult to complete! The third stage involves maintaining the Rasengan.
Only by maintaining its rotation and power can you truly complete the Rasengan training!
Of course, with the assistance of the APP, Koshino doesn't need to go through such complex training!
By communicating with the APP, as Koshino reminisced about Jiraiya teaching Naruto the Rasengan in the original story, the training progress of the Rasengan was integrated into Koshino's training progress bar.
Then, by modifying the Rasengan's training progress, it was directly increased to 100/100. Koshino not only surpassed Uzumaki Naruto but also mastered the method of using the Rasengan with one hand.
After completing the Rasengan training and contemplating its various mysteries, Koshino felt his chakra control ability had strengthened! "Having the APP to modify training progress is great!"
"If I had to train the Rasengan bit by bit, I might not even complete the first stage before entering the battlefield."
Silently sighing in his heart, Koshino looked at the Fourth Hokage and Kakashi, noticing they had come to their senses. He quickly added, "Minato-sensei, who invented the Rasengan you're using? It seems quite simple!"
"The key points of Rasengan training are nothing more than rotation, power, and maintenance."
"You just mentioned teaching me a life-saving technique, it wouldn't be the Rasengan, would it?"
"Of course not!"
Koshino's comment hit its mark, and the Fourth Hokage felt a silent bleeding in his heart, even Kakashi could hear the rapid dripping sound.
But to maintain his dignity in front of Koshino, the Fourth Hokage forced a smile and said:
"No mistake, no error, no content, no 6, no 9, no book, no look!"
"Koshino, the Rasengan isn't as simple as you think. Completing its training has many benefits."
"Now that you've mastered the Rasengan, you're free to move around for now!"
With that, the Fourth Hokage turned to Kakashi, wiped the cold sweat from his forehead, and said, "Kakashi, come! Let's start with the first stage of Rasengan training, which is the rotation Koshino mentioned earlier!"
As soon as the Fourth Hokage finished speaking, Kakashi silently nodded.
Then, just like in the original story where Jiraiya taught Uzumaki Naruto, the Fourth Hokage indeed grasped the balloon training method.
He took out a few balloons and began teaching Kakashi how to train the Rasengan.
Unfortunately, as the Fourth Hokage said, the Rasengan isn't that easy to master, so Kakashi, gritting his teeth, had to accept the fact that he wasn't as good as Koshino.
However, even though Koshino used the APP to quickly master the Rasengan, dealing a blow to the Fourth Hokage and Kakashi, the Fourth Hokage's previous words were not wrong.
By mastering the Rasengan, Koshino could perform more actively on the battlefield and have a life-saving trump card.
Once Kakashi mastered the Rasengan, he too would be able to address some of his own issues.
Speaking of that, Koshino lacked a powerful finishing move, and the Rasengan could help him make up for this weakness.
After all, on the battlefield, members of the Nara Clan are more support-oriented.
Although Koshino has new secret techniques for self-defense, lacking a one-hit-kill jutsu like the Rasengan or Chidori is still very dangerous.
As for Kakashi, his main issue is chakra consumption!
By mastering the Rasengan, his chakra control ability would improve, allowing Kakashi not only to solve his consumption problem but also to potentially find a way to mitigate the Sharingan's chakra drain. Truly a two-birds-with-one-stone training!
Soon, under the Fourth Hokage's guidance, Kakashi finally mastered the first stage of Rasengan training, though he couldn't bring himself to smile!
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