Meihui's and Naruto's Spiral Shuriken fused together, and the combined effect was devastating. Before Kakuzu could react, the attack struck him head-on and sent him flying, plowing a long furrow through the ground. He lost consciousness and died outright, the hearts inside his body bursting apart. If Naruto's Spiral Shuriken alone could destroy three of Kakuzu's hearts, then their combined technique was far more than a simple doubling of damage.
After all, a change in quantity could bring about a change in quality. Both attacks were already powerful ninjutsu. Now that they had merged, how could anyone underestimate their destructive power?
Kakashi, Yamato, and Sakura stared, dumbstruck. What kind of ninjutsu was this? How could it be so powerful? Forget a human-with that level of destruction, it could probably blow apart a mountain.
And that went double for Kakuzu, who had taken a direct hit. By now, he had probably already reported to the Sage of Six Paths.
Seeing how terrifying the brothers' technique was, Kakashi could only marvel at how frightening the two of them were. Meihui had created that ninjutsu himself. Although it was an upgraded Rasengan, Kakashi's teacher, Minato Namikaze, had spent three years developing the original and still had been unable to add any other Chakra Nature Transformation to it.
Yet these two had already succeeded. Their futures held limitless promise.
As for himself, although he had also created a ninjutsu-Chidori (Lightning Blade)-it could not even begin to compare with theirs.
"Man, honestly... I feel like I've wasted all these years living a dog's life," Kakashi grumbled. (Pakkun: Kakashi, where are your manners?)
Sure enough, when a man stayed single long enough, even dogs started looking attractive.
Sakura watched Naruto, who was still standing there grinning foolishly. *Has he already become this strong? Yet I'm still