Naruto had been getting restless lately, because the Wind Release: Rasenshuriken he had finally mastered had been forbidden again.
Although Uchiha Shunichi had told him to use it through a Shadow Clone, that was no long-term solution. Powerful as Shadow Clones were, there was still a considerable gap between them and the original.
Compared to the restless Naruto, Sasuke was much more composed. Rather than rushing to pursue powerful ninjutsu, he was working on adapting to his Mangekyō Sharingan and Lightning Release Ninjutsu.
After awakening the Mangekyō Sharingan, even when he wasn't using it, the ocular power of his Three-Tomoe Sharingan was stronger than before.
"Sasuke, do you have any way to get Shunichi to teach me something else? I finally mastered that jutsu, but I can't even use it. It's just so..." Naruto suddenly said, looking at Sasuke, who was practicing his chakra control nearby.
"...Shunichi was right. Your foundations are too weak! Being a ninja isn't playing house. Knowing stronger ninjutsu doesn't necessarily make you stronger." Uchiha Sasuke looked up at Naruto when he heard him speak, then went back to what he was doing.
At that moment, Uchiha Sasuke was just like Uchiha Shunichi had been several years earlier at the Ninja Academy. Nothing else seemed to enter his eyes, and he appeared to be constantly busy.
Sometimes, the difference between a genius and a fool was pitifully small. Two people might seem to work equally hard at the same task, yet their efficiency could be worlds apart.
The crucial difference lay in single-mindedness. Or rather, the ability to focus...
Naruto could focus well enough, but he didn't know what he should be doing. Although his strength had grown enormously, he didn't understand what had made him stronger.
"My advice is to listen to Kakashi-sensei. Stop training