章 41: Advanced Training Part 2
"Yes, Lord Minato!"
When Koshino quickly mastered the Twin Rasengan and Rasengan Throwing Technique using the APP's accelerated training, the Fourth Hokage's suggestion for Koshino to join Kakashi's Anbu squad was not the outcome Koshino had hoped for.
Nodding reluctantly, Koshino agreed to join Kakashi's Anbu squad. Seeing the playful look in Kakashi's eyes, Koshino felt his troubles increasing.
Not only did Koshino and Kakashi have many misunderstandings, but they also couldn't see eye to eye.
Joining Kakashi's Anbu squad felt awkward to Koshino, dampening his enthusiasm for training.
Yet, the Fourth Hokage's decision was final, and neither Koshino nor Kakashi could change it. In fact, the Fourth Hokage wanted Koshino in Kakashi's squad for Koshino's benefit. Completing missions would provide Koshino with valuable combat experience, increasing his survival chances in future battles.
Additionally, the Fourth Hokage had another reason for assigning Koshino to Kakashi's squad.
He knew he wouldn't have time to guide Koshino and Kakashi's training in the near future.
The reason? Koshino's earlier training with the Rasengan Throwing Technique.
Years ago, before Jiraiya left the village, the Fourth Hokage was inspired by the Tailed Beast Ball to create a non-hand-sign jutsu. After three years of effort and some guidance from his mentor, Jiraiya, he finally developed the A-Rank Rasengan. However, he had only mastered the Rasengan, not simplified its training method.
Recently, through correspondence with Jiraiya, the Fourth Hokage simplified the Rasengan training, leading to his instruction of Koshino and Kakashi.
However, during this simplification process, both he and Jiraiya hit a bottleneck in Rasengan's development.
Koshino's Twin Rasengan and Rasengan Throwing Technique inspired the Fourth Hokage, giving him new ideas for advanced Rasengan techniques.
If the original story's Fourth Hokage had lived longer, techniques like the Big Ball Rasengan and Wind Release: Rasenshuriken might have been developed earlier.
Currently, the Fourth Hokage, inspired by Koshino, had new ideas for advanced Rasengan techniques. In a way, Koshino had altered the Fourth Hokage's life trajectory.
This could change the outcome of the Nine-Tails incident.
Unaware of his impact, Koshino's main concern was not to suffer under Kakashi's leadership.
"Joining Kakashi's Anbu squad, with him as both a senior and the captain, he'll likely give me a hard time."
"Sigh, if only Kakashi had the same personality as in the original story, not this nitpicky person."
"I need to improve my strength to avoid his difficulties quickly."
"Fortunately, the advanced Rasengan techniques, combined with APP's accelerated training, will boost my strength significantly!"
"With the Twin Rasengan and Rasengan Throwing Technique, two nearly fatal jutsus, I won't be as helpless against Kakashi as before."
Watching Kakashi start the second stage of Rasengan training under the Fourth Hokage's guidance, Koshino used the available training time to practice the Multi Shadow Clone Jutsu.
Seeing Koshino use shadow clones, the Fourth Hokage and Kakashi, aware of Koshino's talent for jutsus, were only slightly surprised and resumed their training. Koshino then directed his clones.
"Three clones for the Big Ball Rasengan training should suffice. Once it's added to the progress bar, APP will complete the training."
"The remaining three clones..."
"Ha!"
"Let's innovate with the Rasengan!"
With a gleam in his eyes, Koshino thought:
"If I can use a Rasengan with just a finger, my chakra control will improve further."
"Alright! I'll name this new jutsu Finger Rasengan!"
"Shadow clones, begin training!"
While his clones trained, Koshino continued practicing Leaf Strong Fist Taijutsu with weights.
As the sun began to set, Kakashi, under the Fourth Hokage's guidance, nearly completed the second stage of Rasengan training. By tomorrow, he'd start the third and final stage.
Some might wonder why Kakashi progressed so quickly with Rasengan training.
Kakashi is a Jonin who created the S-Rank Chidori. His chakra control was already exceptional.
With the Fourth Hokage's guidance and the simplified training method, Kakashi quickly grasped Rasengan's nuances and was nearing its completion. He even began reducing the Sharingan's drain on his chakra.
Despite Kakashi's rapid progress, Koshino's APP-assisted training allowed him to advance even faster.
When Koshino's clones disappeared, the Finger Rasengan and Big Ball Rasengan were added to his training progress.
With a simple modification, Koshino mastered both advanced Rasengan techniques, further enhancing his strength.
As Koshino and Kakashi completed their training, the Fourth Hokage, eager to develop advanced Rasengan techniques, departed early.
After the Fourth Hokage left, Koshino awkwardly restored his chakra in front of Kakashi. Seeing Koshino's chakra replenished, Kakashi coldly glanced at him and said, "Koshino, you're not familiar with the other members of our Anbu squad."
"I'll introduce you once they arrive."
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