Senju Tōsu admitted that the Shimura Clan had surprised him many times over the past two months, but he still did not believe that their Body Strengthening Secret Technique possessed cultivation methods at the C-Rank or even B-Rank level.
The main issue was that using sound waves to temper the body was simply too extreme and dangerous. One slight mistake would result in death or crippling injury. It was taking an unorthodox path to the absolute extreme.
Creating such an extreme body-tempering secret technique would inevitably require unimaginable sacrifices. By his calculations, the Shimura Clan had needed to sacrifice at least a hundred thousand people to derive that D-Rank Body Strengthening Secret Technique. To create a C-Rank one would certainly require more than ten times that price.
Though the ninja world had a vast population, there was no way they would fail to notice over a million people disappearing at once.
Therefore, that D-Rank Body Strengthening Secret Technique was already the Shimura Clan's limit. Even if they had anything stronger, there could not be much of it.
"Exactly. I don't think the Shimura Clan has that kind of foundation either!"
Tsunade likewise did not agree. It was too inconceivable—simply absurd.
This was not a matter of trust. It was simply impossible!
"You two will regret this someday!"
Shaking her head with a sigh, Uzumaki Mito had great confidence in her judgment of people. Though she had not spent much time with that little brother, she could see how extraordinary he was, especially that absolute confidence of his.
It was not the confidence of blind ignorance, but a rational confidence. He clearly had the absolute assurance needed to become a powerhouse of his generation.
Unfortunately, few could see that. Everyone had underestimated that little brother and the Shimura Clan.
She had