"Just as expected of Minato Namikaze. No wonder it took him three years to create this technique."
Kyoichi read for the entire night.
It was one of the few times he had stayed up late since crossing over.
The gains were tremendous!
Minato Namikaze had gained the inspiration for the Rasengan from the Tailed Beast Ball. After that, he had continuously tried to compress chakra, but he had struggled to succeed.
Even so.
For the Rasengan, he had considered using Sealing Jutsu for assistance—
Training with balloons had come later.
Every step of the exploration in between had been recorded by Minato in this scroll.
It contained more than just the Rasengan.
There was plenty of other knowledge as well.
For example...
Compression techniques.
Sealing Jutsu.
Although it was incomplete, it was still extremely valuable.
Kyoichi put it away.
This was a treasure.
Of course.
The most precious thing about the scroll was—
As its creator, Minato Namikaze had allowed him to teach this secret technique himself.
Jiraiya was truly generous.
Kyoichi knew very well that Jiraiya was the main reason.
Minato Namikaze had never known Yahiko and the others, so it was only because of Jiraiya that he had paid such a huge price and even handed over a copy of the Rasengan's original manuscript.
After finishing.
He released his hand, and the scroll flew up on its own, heading toward the bookshelf nearby.
Dance of the Paper Spirit!
It was a very simple application, but extremely convenient.
Of course.
Dance of the Paper Spirit was not without weaknesses.
It took a long time to prepare!
Konan's paper had undergone special treatment in the future, so it was only afraid of oil-based techniques and had no major weaknesses.
However.
Those preparations consumed a great deal of chakra and time.