As for the existence of vital energy, Kitahara Kaede knew about it.
When fighting in the universe, most of them still used the energy within their bodies. But vital energy was indeed an important factor in allowing one's life level to undergo a leap.
Although Hashirama Senju's first thought had been to use vital energy to attack enemies, once he had mastered it, only the threshold of comprehending an order remained on his path to becoming an Order User.
"No one would believe this if we told them." Tobirama Senju still spoke with a gloomy expression.
This was the first time he had been dealt such a blow by his own elder brother—and in terms of talent, no less.
Back when Hashirama Senju used Kekkei Genkai, he had not felt much about it. But now, the situation was completely different!
"What happened?" Tsunade arrived in a rush, looking travel-worn.
She was still gripping Nawaki by the neck.
If Tsunade had not been using her own power to protect Nawaki the entire way, that speed would have been enough to tear him apart.
"Big Sister, I can't breathe!" Nawaki desperately pried at Tsunade's fingers with both hands.
After being revived, he was still the size of a child, so Tsunade was simply holding him up.
"Brother-in-law, save me!" Nawaki shouted at Kitahara Kaede.
That shout finally startled Tsunade. She hurriedly released her grip, allowing Nawaki to breathe freely again...
"Grandpa Hashirama has mastered vital energy. The road ahead will be smooth for him now." Kitahara Kaede smiled.
Hashirama Senju's use of vital energy would certainly not escape the notice of the other Order Users.
Tsunade was the first to arrive not because she was especially fast, but because the others had remained outside after discovering that this was Kitahara Kaede's home.