Kaguya's idea was very simple.
She wanted to sacrifice the entire Ninja World so that the God Tree would bear another fruit.
The Ōtsutsuki Clan had sent her to plant the tree, and ultimately, it was for the chakra fruit.
As long as she could find a way to grow another chakra fruit, nothing else mattered.
Whether it was using the second chakra fruit to report back to the Otsutsuki Main Family, or consuming it herself to increase her strength and block the pursuers sent by the Main Family, it was a good choice for Kaguya.
As for the other people in the Ninja World?
What did that have to do with Kaguya?
To Kaguya, even if everyone in the entire Ninja World died out, as long as she and Minamikawa Yuu were fine, it didn't matter.
"And after you sacrifice the people of the entire world?"
Minamikawa Yuu didn't blame Kaguya for her idea, but simply asked calmly, "What if it's not enough to grow the next fruit? What will you do then?"
Hearing this, Kaguya fell silent, somewhat at a loss for words.
In truth, she knew it too.
Given the current state of the Ninja World, even if every living being in the entire world were sacrificed, it would likely not be enough for the God Tree to bear another chakra fruit.
Ultimately, the energy required to grow a chakra fruit was simply too massive.
Using life as a sacrifice to grow the fruit through life energy was not impossible, but it was certainly not easy.
"Let me try."
Looking at the silent Kaguya before him, Minamikawa Yuu smiled and spoke, "Anyway, for now, those people from your Main Family won't be arriving so soon."
"Let me try first. If it doesn't work, you can try your method. How about it?"
He was in no hurry.
According to the original storyline, there were at least several thousand years before the Otsutsuki Main Family would reach the Ninja World.
Such a long time was enough for him to do many things.
Many experiments could be conducted during this time.
If it really didn't work out, it wouldn't be too late to make other plans.
In front of him, meeting Minamikawa Yuu's gaze, Kaguya was somewhat puzzled.
From her perspective, there were only a few ways to speed up the growth of the God Tree.
Besides sacrificing the entire Ninja World, could there really be another way?
However, she had an instinctive trust in Minamikawa Yuu.
Since he said so, she was willing to let him try.
Minamikawa Yuu quickly began his movements.
In this era's Ninja World, the Land of Ancestors had already been unified.
The threat of war no longer existed, and civilians everywhere had received land through land distribution. It was a time of peace across the four directions.
A vigorous period of development and expansion began.
For five full years, through production and expansion, the amount of grain produced and circulated within the Land of Ancestors greatly increased.
Most importantly, the seeds of Chakra were officially distributed by Minamikawa Yuu.
The seeds of Chakra were something that should have originally been distributed by the Six Paths Sage.
In legend, the Six Paths Sage founded Ninshū, using the power of Chakra to connect people.
His intention was for people to understand each other, but the end result was the distribution of Chakra seeds and the spread of the power known as Chakra.
What the Six Paths Sage could do, Ōtsutsuki Kaguya, as the Progenitor of Chakra, could naturally do as well.
However, unlike the Six Paths Sage's nonsensical goal, Minamikawa Yuu's purpose for distributing Chakra seeds was clear from start to finish.
He integrated the power of Chakra into production, greatly increasing the construction efficiency of the entire nation.
In fact, while the power of Chakra was useful in war, its effectiveness when applied to production was even better.
Is the land uneven and difficult to cultivate? Use some Earth Release.
Is there a drought or water shortage? Use some Water Release.
Illness or injury? Apply some Medical Ninjutsu.
In every aspect, the power of Chakra was nearly omnipotent.
Whether this power was used for killing or for saving lives depended entirely on how it was applied.
And now, this power was being applied to production by Minamikawa Yuu.
In a short period, various ways of applying Chakra to production were researched and quickly implemented.
All of this ultimately led to the same result: a massive increase in productivity.
Given the nature of the agricultural era, once productivity increased significantly, a population explosion followed.
Fundamentally, birth rates in the agricultural era were already high; the reason population growth was usually not obvious was mainly due to constraints in food and medicine.
Now, with Chakra driving a great development in productivity, the food problem had been basically solved.
In terms of medicine, specialized Medical Ninja were now available, and various Medical Ninjutsu were rapidly developed. The probability of maternal death during childbirth or infant mortality was brought under control.
On top of these basic conditions, there were two huge boosters: the special period right after the war ended, and the egalitarianism following land distribution.
With all factors working together, the result was simple.
Explosive growth.
In just ten short years, the population of the entire Ninja World had expanded several times over.
More advanced industries began to develop continuously, and once productivity was sufficient, basic education also began to be implemented gradually.
Of course, in this world, the most important basic education was nothing else but how to refine Chakra.
After the seeds of Chakra were scattered, the next generation of children growing up in the Ninja World basically all had the ability to refine Chakra, though the amount varied due to innate talent.
And this was precisely Minamikawa Yuu's goal.
Inside the capital of the Land of Ancestors.
Kaguya slowly opened her eyes.
Led by Minamikawa Yuu, she came to the depths of a palace.
Under her gaze, Minamikawa Yuu stepped forward and slowly opened a wooden box.
The next moment, Ōtsutsuki Kaguya's eyes widened.
"This is..."
Presented before her were several emerald-colored crystals.
The emerald crystals were beautiful, looking like some kind of gemstone—pure, beautiful, and captivating.
But in Ōtsutsuki Kaguya's eyes, these crystals had another significant meaning.
"Such massive Chakra..."
Standing there, she murmured to herself, her eyes revealing a look of disbelief.
"Where did you get these?"
She looked at Minamikawa Yuu and couldn't help but ask.
"Naturally, they are the results of hard work."
Meeting Kaguya's gaze, Minamikawa Yuu smiled and spoke.
Where did this massive amount of Chakra come from?
The answer was: by shearing the wool.
Mainly shearing the wool of students.
In today's Ninja World, under Minamikawa Yuu's orders, academies in various regions had begun to be organized.
Although due to many limitations, it wasn't possible to cover all suitable children, covering over a million students was easy.
These people were the best source of Chakra.
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