The process went very smoothly. After infusing Wind Release Chakra, the shape of the Rasengan in Naruto's hand underwent a slight change. A ring of shuriken-like Wind Release patterns appeared on its surface, seemingly giving the impression of an evolutionary transition toward the Wind Release: Rasenshuriken.
However, this ring of Wind Release shuriken patterns was not only incomparable to the Wind Release: Rasenshuriken, but it was even superior to a fully developed Wind Release: Rasenshuriken.
Perhaps this was the prototype version of the Wind Release: Rasenshuriken. Although it was just a prototype, being able to achieve this level on the first try left Naruto quite satisfied.
Now that he had successfully infused Wind Release Chakra into the Rasengan, the next step was to test the power of this prototype Wind Release: Rasenshuriken.
With this thought in mind, the next second, Naruto stood up from the top of the Uchiha Madara statue, looked down at the lake formed by the convergence of the waterfall below, and directly threw the prototype Wind Release: Rasenshuriken from his hand.
The moment Naruto threw the Rasengan—which already possessed the embryonic form of a shuriken—into the lake, it immediately stirred the lake water to form a massive whirlpool. The whirlpool then erupted into a gigantic pillar of water that soared into the sky like a swimming dragon before falling back down, creating an artificial torrential rain right above the statues of Madara and Hashirama at the Valley of the End!
Gazing at this unimaginably spectacular scene, Naruto nodded inwardly. This was far more powerful than simply using a Rasengan. It seemed that a simple Wind Release: Rasenshuriken was well worth developing.
After all, the Wind Release: Rasenshuriken already possessed a throwable attribute that the ordinary Rasengan lacked. Although the later Wind Release: Rasenshuriken would be even more powerful, let's not forget that before mastering the Wind Release: Rasenshuriken to the point where it could be thrown, using it rashly would result in inflicting a thousand injuries to the enemy while suffering eight hundred to oneself!
Therefore, Naruto's current goal was to fully develop the Wind Release: Rasenshuriken. Once this jutsu was mastered, paired with the attribute bonuses from the "Size Control Expert" title, it would undoubtedly become a major weapon for slaughtering enemies!
Standing atop the head of the Uchiha Madara statue, Naruto gazed into the distance with sharp eyes. He had already decided that right here in the Valley of the End, he would first master the Wind Release: Rasenshuriken and even the Wind Release: Rasenshuriken, before venturing out into the Shinobi World!
This was what you call going into seclusion for training!
...
The next day, around dusk.
Within the vast Valley of the End, dense crowds of Naruto's Shadow Clone Technique clones were scattered everywhere, with every single clone holding a Wind Release: Rasenshuriken condensing in the palm of its hand.
This time, they were genuine Wind Release: Rasenshurikens, and thanks to the bonus from the "Size Control Expert" title, their power was even greater than in the original story!
Looking out across the landscape, the entire Valley of the End was filled with Wind Release: Rasenshurikens. The terrifying pressure radiating outward was so intense that even the flow of air became extremely chaotic.
There was not the slightest doubt that if all these Wind Release: Rasenshurikens were to detonate at once, this Valley of the End would likely become unrecognizable. Naruto had no desire to cause such a massive commotion. The next second, those clones holding the Wind Release: Rasenshurikens vanished one after another, turning into puffs of white smoke.
In the end, only Naruto's true body remained, standing on a large boulder beside the waterfall in the Valley of the End. With a smile on his face, he said, "Alright, the training for the Wind Release: Rasenshuriken can be considered a complete success. Next, it's time to try developing the Wind Release: Rasenshuriken."
The Wind Release: Rasenshuriken involved taking the nature transformation a step further by adding Wind Release Chakra to the Rasengan. In Naruto's view, for the Wind Release: Rasenshuriken to erupt with sufficient power, the nature transformation of "sharpness" in the infused Wind Release Chakra was absolutely indispensable.
As the saying goes, when something reaches the ultimate level of sharpness, it can cut through everything in the world!
With the bonus from the "Junior Comprehension" title, Naruto's mind was sharper than ever. Almost in an instant, he formulated his next training plan.
"Let's start by cutting the waterfall using Wind Release Chakra," Naruto muttered, turning his gaze toward the torrential waterfall rushing down from the top of the Valley of the End.
Multiple Shadow Clone Technique!
The next moment, a row of clones stood before the cascading waterfall, sinking their palms into the rushing current and beginning to release Wind Release Chakra imbued with nature transformation.
During the first attempt by all the clones, the surface of the pure white waterfall seemed to have a gash cut into it, but that was all. Seeing this, Naruto did not lose heart. His true body continued to output Wind Release Chakra alongside all the clones, attempting to transform the nature of the Wind Release Chakra into a "sharp" attribute better suited for cutting the waterfall.
A massive amount of training experience began to accumulate rapidly within Naruto, absorbed like a sponge in water under the bonus of the "Junior Comprehension" title.
...
Aided by the "Junior Comprehension" title, Naruto entered an exceptionally favorable training state, to the point where he completely lost track of time during the process.
Finally, at a certain moment, a flash of inspiration struck Naruto's mind, and his entire body entered a wondrous, near-ethereal state, as if blessed by divine grace.
And then, the next second, a terrifying thing happened.
When Naruto and all his clones simultaneously outputted Wind Release Chakra with its nature transformed into "sharpness," an invisible chakra wind blade instantly sliced the waterfall ahead into two. Even that wasn't all—the supremely sharp chakra wind blade even cut all the way around the entire valley in a complete circle. Although the cut was narrow, it was exceptionally deep, and there was no telling how far down it went!
Faintly, the entire Valley of the End seemed to tremble abruptly at that exact moment, as if it had suddenly become a fraction shorter due to being ring-cut by the wind blade. As for the statues of Madara and Hashirama, smooth cutting marks appeared on their surfaces. Then, following these cutting marks, the upper and lower bodies of Madara and Hashirama's statues began to separate. The colossal upper bodies of the two great statues collapsed like falling giant deities, crashing heavily onto the lake surface of the Valley of the End with a momentum as deafening as thunder striking the ground and tall buildings collapsing.
Naruto had sensed it beforehand and dodged the falling statues. Standing now upon the ruined upper half of Uchiha Madara's statue, and looking down at the cut beneath his feet that was as smooth as a mirror without a single burr, Naruto could not hide the shock in his eyes: "Was this... the commotion I just created?"
The lower bodies of the two statues still stood, but their collapsed upper bodies had almost completely filled the entire Valley of the End. If later generations were to witness this scene, there is no telling how astonished they would be.
As Naruto finally collected his wits, he recalled that brief moment just now when he entered the "ethereal" state. That feeling of sudden divine inspiration was undoubtedly the result of the "Junior Comprehension" title triggering its Divine Enlightenment special effect!