The range of the Flying Thunder God Technique depended mainly on Uchiha Yi's Chakra and how far he could sense.
Uchiha Yi's Chakra reserves kept growing. Without anyone noticing, they had already surpassed Tsunade's.
Sometimes Tsunade wondered whether Uchiha Yi was really a Senju rather than an Uchiha.
"I see. Then leave some Flying Thunder God Marks along the way. If you run into danger, take Rinka and Kushina and get out," Tsunade said, breathing a little easier.
Twenty kilometers was not far for a Ninja. At a full sprint, it would take only a few minutes, and Uchiha Yi and the others were fast enough to keep themselves safe.
As long as Kushina Uzumaki and Hyuga Rinka were safe, that was enough. Tsunade should be fine too. Even if she died, that was the fate of a Ninja.
"I know." Uchiha Yi nodded, then smiled faintly. "But there's no need to be so pessimistic about this fight. Surely the other villages won't send Kage Level Ninja here?"
Uchiha Yi knew Hatake Sakumo was following behind them. With Sakumo, himself, and a group of Root Ninja, they could put up a fight even if they encountered Hanzo of the Salamander.
A few years from now, Tsunade, Jiraiya, and Orochimaru would be unable to defeat Hanzō.
But Uchiha Yi, Tsunade, and Hatake Sakumo stood a chance. Their teamwork simply would not match that of Tsunade's original squad.
With the right teamwork, one plus one plus one could easily add up to more than three.
Still, there were few fighters like Hanzō in the Shinobi World.
At present, Madara Uchiha was unquestionably the strongest in the Shinobi World, followed by Mito Uzumaki, and then the Five Kage and Hanzō.
Hanzō had not yet earned the title of Demigod, but even now, he