[The Next Day]
Rengoku did not follow Sasuke and Karin to go to school.
At present, there was also nothing in school that had to be handled by Rengoku, even if he was the principal.
Last night while learning sealing techniques, after learning that the Nine-Tails' chakra was in the northwest direction, he prepared to come to the Uchiha clan's historical archive to check some materials.
After all, inside here were all historical records and materials, not ninjutsu and such things.
The building for ninjutsu was much more heavily guarded, and had many more ninjutsu inside.
After all, the Uchiha's Sharingan could copy, and over hundreds of years, most common and uncommon ninjutsu in the ninja world had been copied into the Uchiha's ninjutsu archive.
Even techniques like Shadow Clone and Multi Shadow Clone, the Uchiha also had. After all, Madara and Tobirama fought so many times.
In the end, they formed Konoha together, how could they not have this?
It's just that Shadow Clones disperse visual power, so most Uchiha didn't like using them.
Rengoku, however, had learned it early on, and there would definitely be chances to use it in the future.
The Uchiha historical archive had no guards, only two maintenance personnel.
And neither were ninjas, just two ordinary people with the Uchiha surname.
Being able to work for the clan was considered an opportunity, no need to worry about going hungry.
The work here was easy and comfortable. For people without ninja talent, it was simply paradise.
Even though the materials here weren't important, Uchiha Koutarou and Koutsurou didn't dare to be negligent.
They cleaned the place thoroughly every day, and checked daily whether the books were damaged, or needed to be aired out.
When Rengoku came over, the two were just putting the books that had been aired back onto the shelves.
""Fourth Elder,"" The two hurriedly saluted Rengoku.
As long as Uchiha ninjas awakened their eyes, their personalities were all impatient.
They had long memorized all the people of the Uchiha clan one by one to avoid the situation where they didn't recognize someone.
Rengoku nodded at the two and asked, "Bring me the map of the Land of Fire, the three-meter-long one."
Koutsurou responded and hurried to get it.
Koutarou asked Rengoku, "Fourth Elder, last time you took the Uchiha Madara historical copy."
"Do you need to supplement a copy?"
In the Uchiha archive, most books had copies. If you took a copy and didn't return it, you had to mention it.
That way the archive could supplement another copy, to avoid missing the book in the future.
Originally the Uchiha didn't have this rule, but it started only decades ago after some Uchiha left and took away a large number of books, resulting in a shortage of knowledge.
Rengoku nodded, "Mm, supplement it."
Then he suddenly became interested, "Mm, regarding books that record the Warring States Period, are there still many in the clan?"
Koutarou had worked here for over ten years and was very familiar with what books were in the archive.
"About a dozen or so, all have copies. If the Fourth Elder needs them, I can go get them now."
At this time Koutsurou had already returned, holding a huge folded and rolled-up map in his hand.
"Mm, go get them," After giving the order, Rengoku took the map, unfolded it and hung it on the wall.
There were hooks on the wall; once hooked, the map was completely lifted.
Rengoku followed Konoha's position and started searching one by one toward the northwest direction.
'The place Kurama mentioned, where is it?'
The ninja world had too many dangers. Even if Rengoku currently had the Mangekyo Sharingan, he still didn't dare to be reckless.
The unfolded map of the Land of Fire was very large; Rengoku thought it would take effort to find it.
But fortunately, in that direction there was only one relatively famous landmark.
'The Fire Temple.'
Judging by memory, Rengoku felt this should be the only place that might store Nine-Tails' chakra.
He knew it was Kazuma who collected the Nine-Tails' chakra, but fortunately, Kazuma would not act further for the time being.
However, he hadn't expected that this clash between Konoha and the Uchiha would bring Kazuma and others to Konoha to take advantage.
With the alarm lifted, Rengoku also relaxed.
He began thinking, 'What benefits can be gained here?'
"Fourth Elder, they're all here," Koutarou interrupted Rengoku's thoughts.
Rengoku came back to his senses and looked at the clan's records of the Warring States Period.
He casually pulled out one volume and started flipping through it.
"Eh? …The Chaos of the Shikotsumyaku?", Rengoku was somewhat surprised, 'The Shikotsumyaku of the Warring States Period, how interesting.'
This book recorded that during the early Warring States Period, even Madara and Hashirama had not yet been born.
The entire ninja world was divided by various ninja clans.
At that time, the Hozuki, Kaguya, and Yuki clans jointly occupied the area of the current Land of Water, fighting each other.
Among the Hozuki clan, a genius appeared, named Hozuki Sakutsuki.
In a short period of time, he continuously developed many new Water Release secret techniques.
The strength of the Hozuki clan began to swell.
The tripartite balance was broken, and conflicts became increasingly frequent.
The Kaguya clan had always been in a weak position, beaten down for nearly twenty years.
But unexpectedly, they had been hiding their strength all along.
When the Hozuki clan was about to reach the top, the Kaguya clan finally revealed their trump card.
The Shikotsumyaku after reaching adulthood.
Shikotsumyaku was a reversion of the Kaguya clan's lineage, descendants who inherited the marrow blood of Otsutsuki Kaguya. Their combat power was incomparably strong, with inherited dances of battle in their bloodline.
Their battle instincts were extremely keen, their bone blades indestructible and laced with poison, almost unbeatable in taijutsu.
In several battles, they beat the Hozuki clan into retreat again and again.
Because of their wild and fierce fighting style, they were nicknamed: Mad Bone.
The Hozuki clan had no choice but to form an alliance with the Yuki clan through marriage.
Planning to endure until the Shikotsumyaku's limited lifespan ended.
Because most Shikotsumyaku had bloodline-related illness, after adulthood they could basically only live to twenty-three or twenty-four years old.
But this time period was also when the Shikotsumyaku were at their strongest.
Once this period passed, the Shikotsumyaku would disappear on their own.
The Hozuki and Yuki clans defended together for a few years, and Mad Bone indeed faded away as the records stated.
Worried that the Kaguya clan would produce Shikotsumyaku again, the Hozuki clan dispatched Hozuki Sakutsuki.
Together with a Yuki clan powerhouse named Yuki Kaede, they mobilized more than a hundred elites to exterminate the Kaguya clan.
Due to the disappearance of the Shikotsumyaku, the Kaguya's upper-tier combat power was far behind that of the Hozuki and Yuki clans.
They were beaten back continuously, and in the end retreated to their clan grounds.
But the Hozuki and Yuki clans were determined to wipe out the Kaguya, so they charged straight in.
Then an unexpected event occurred.
Mad Bone, who should have died years ago, had actually been using a secret technique to cling to his last breath.
When Hozuki Sakutsuki and Yuki Kaede led the attack into the Kaguya territory, Mad Bone unleashed the final brilliance of the Shikotsumyaku.
The Dance of the Early Ferns bloomed into an infinite forest of bones, and Mad Bone wielding bone blades that killed upon drawing blood, roamed within.
He perished together with Hozuki Sakutsuki, Yuki Kaede, and over a hundred elites.
The Hozuki and Yuki clans suffered great losses, no longer able to eliminate the Kaguya.
After that, the Hozuki clan fell from the divine pedestal, and even the First Mizukage position went to someone else.
Later the Hozuki clan produced Hozuki Gengetsu who became the Second Mizukage, and only then did the clan gradually recover.
It could be said that during the Chaos of the Shikotsumyaku, Mad Bone single-handedly changed the future course of the Land of Water.
Rengoku read this record with great interest.
'Truly, this world has no shortage of heroes.'
'It is a pity this Mad Bone didn't live in the same era as Madara and Hashirama.'
'Otherwise, there surely would have been more brilliance.'
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