Naruto Shadow Mage - Chapter 39
“Hahaha!”
“Koshino, it took me three years of hard work to develop the Rasengan!”
“Stop trying and just listen to me explain the principles of the Rasengan!”
Seeing Koshino’s curious expression and his attempt to perform the Rasengan, the Fourth Hokage couldn’t help but laugh, thinking that Koshino was still just a four-year-old child.
How could a technique that took the esteemed Fourth Hokage three years to create be learned by a child just by looking at it once?
After reconciling with Koshino and still feeling guilty for almost killing him, Kakashi furrowed his brow and tried to persuade Koshino, saying:
“Koshino, listen carefully to what Lord Fourth has to say.”
“Even I couldn’t successfully learn the Rasengan without understanding the training method. Besides…”
“What?!”
Just as the Fourth Hokage and Kakashi were convinced that Koshino couldn’t possibly perform the Rasengan, the chakra in Koshino’s palm started to flow, forming a spherical shape that left them both stunned.
The chakra in his palm gradually shaped into a perfect sphere, just like the Rasengan that the Fourth Hokage had demonstrated earlier.
Before Koshino had fully executed the technique, neither the Fourth Hokage nor Kakashi could believe that he could master the Rasengan simply by watching it once. The Fourth Hokage, who had painstakingly developed the Rasengan, felt an overwhelming mix of emotions seeing it executed so effortlessly by Koshino.
“Is this what a prodigy truly is?”
“Is this the sorrow of teaching a prodigy? Jiraiya-sensei, I suddenly understand your feelings.”
The Fourth Hokage silently lamented Koshino’s incredible talent. Both he and Kakashi were stunned, unable to comprehend how Koshino had managed to perform the Rasengan.
“Thank you, Lord Fourth!”
“If you hadn’t taught me how to use the Rasengan today, I would have had to explain myself if I used it on the battlefield in the future!”
“And Kakashi, you can’t act superior to me now, can you?”
Seeing the Fourth Hokage and Kakashi dumbfounded, Koshino felt immense satisfaction, and his previous frustration dissipated.
How did Yoshiya manage to perform the Rasengan after watching it once? The answer was simple—he had the help of the app!
Having long known the principles behind the Rasengan, Koshino was already prepared to train in it before the Fourth Hokage’s lesson.
The critical points of Rasengan’s training were clearly explained in the original storyline:
The first stage of Rasengan training focused on rotation!
In the original storyline, Jiraiya’s first stage of Rasengan training involved using a water balloon.
The second stage of Rasengan training emphasised power!
Following the water balloon method, Jiraiya used a rubber ball to train, and completing these two stages meant that one had grasped the basics of the Rasengan.
However, the third stage of Rasengan training was the most challenging!
The third stage involved maintaining the Rasengan’s rotation and power, which marked the completion of the Rasengan.
But with the APP’s assistance, Koshino didn’t need to go through such complex training!
Communicating with the APP in his mind, Koshino silently recalled Jiraiya teaching Naruto the Rasengan in the original story. The Rasengan training progress was then integrated into his training progress bar. Modifying the progress to 100/100, Koshino not only surpassed Naruto in mastering the one-handed Rasengan, but he also felt his chakra control abilities improve significantly.
“The APP’s progress modification is fantastic!”
“If I had to train the Rasengan step by step, I probably wouldn’t even complete the first stage before entering the battlefield.”
With a silent sigh of relief, Koshino looked back at the Fourth Hokage and Kakashi, seeing them snap out of their shock. He quickly added:
“Lord Fourth, who invented the Rasengan you’re using? It seems pretty simple!”
“The key points of Rasengan training are rotation, power, and maintaining it.”
“The life-saving technique you mentioned teaching me, it’s not just the Rasengan, right?”
“Of course not!”
The Fourth Hokage forced a smile despite feeling a bit humiliated. Even Kakashi could sense the Hokage’s inner turmoil.
“But Koshino, the Rasengan isn’t as simple as you think. Completing its training offers many benefits.”
“Now that you’ve mastered the Rasengan, you’re free to go for now.”
Then, turning to Kakashi and wiping the cold sweat from his forehead, the Hokage said, “Kakashi, let’s start with the first stage of Rasengan training, which is the rotation Koshino mentioned.”
As soon as the Fourth Hokage finished speaking, Kakashi nodded quietly.
Just like Jiraiya in the original story, the Fourth Hokage introduced the water balloon training method, using balloons to teach Kakashi the basics of the Rasengan. Despite the difficulty, Kakashi, gritting his teeth, had to accept that he couldn’t match Koshino’s pace.
Despite Koshino’s quick mastery of the Rasengan, proving himself superior to both the Fourth Hokage and Kakashi, the Hokage’s earlier statement remained true. Mastering the Rasengan equipped Koshino with a vital survival skill and a powerful technique for the battlefield. For Kakashi, mastering the Rasengan could address his chakra consumption issues and potentially help him manage his Sharingan’s drain.
In the end, after intensive training under the Hokage, Kakashi managed to complete the first stage of the Rasengan, but he couldn’t bring himself to smile.
Especially when he was about to celebrate his progress, he saw the Fourth Hokage’s astonished expression directed at Koshino. Koshino, having successfully “thrown” the Rasengan while maintaining its power within a single day’s training, left both the Hokage and Kakashi speechless. After a moment of stunned silence, Kakashi muttered:
“What a prodigy!”
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