The Nine-Tails' Rampage That Has Already Changed, Preparing to Clone the Byakugan

It is common knowledge that cats are animals with a strong sense of curiosity.

If a curious Ninja Cat were to accidentally open this sealed jar, the massive, uncontrollable Nine-Tails chakra would bring total annihilation upon the entire Ninja Cat Clan.

Bringing it back to Konoha was even less of a good idea, as it would be far too easy for someone to discover.

Therefore, Ensei Uchiha and Granny Cat discussed the matter for a long time and, after paying a significant price, finally reached an agreement for Granny Cat to reinforce the seal on the Nine-Tails chakra.

This seal was not one placed upon a portable object, but rather a fixed seal cast by utilizing the terrain itself.

There was no helping it; whether it was his mastery of sealing techniques, his own age, or the knowledge he possessed, Ensei Uchiha was not yet capable of conducting research on this Nine-Tails chakra at this moment.

Thus, if he did not want to hand over the Nine-Tails chakra, this was the best option.

"This is a ruin deep within the Empty Zone. Generally speaking, no humans come here, and no Ninja Cats wander this far either."

"In this way, even if this Nine-Tails chakra leaks, it will not cause too much destruction to our Ninja Cat Clan."

"Listen well, Ensei kid. You only have five years. After five years, the seal will weaken. If you haven't retrieved it by then, I will arrange for others to come here and clear this thing out."

For this trip, Granny Cat had brought nearly half of the Ninja Cat Clan's high-end combat power, all to ensure that the jar containing the Nine-Tails chakra could be sealed as securely as possible.

As a clan of ninja beasts that had survived in the ninja world for so long, while the Ninja Cat Clan's strength could not be called overwhelming, they still possessed a certain foundation.

"Rest assured, I will do what I promised you. Have you not understood my capabilities over these years?"

"It is only limited by my current age; otherwise..."

Ensei Uchiha did not finish the rest of his sentence, but Granny Cat had indeed understood his meaning.

Though she felt a bit uneasy in her heart, on the surface, Granny Cat maintained the same proud demeanor as the other Ninja Cats.

The sealing process went very smoothly, and at the same time, Ensei Uchiha took out some weapons he had prepared.

Well, just some simple detonators and high-explosive TNT.

If he had transmigrated to ancient times, it would naturally be extremely difficult to produce TNT purely by hand.

But in this ninja world, which possessed most modern machinery and the existence of chakra, finding a way to produce some high-explosive TNT was quite simple.

Ensei Uchiha had even produced smokeless powder and crafted some firearms.

As he said before, it was only limited by his own age. Otherwise, Ensei Uchiha alone would have been enough to change the landscape of the entire ninja world.

Amidst the hustle and bustle, Ensei Uchiha was finally sent back to Konoha by the Ninja Cat Clan at daybreak.

And from the mouth of Uchiha Inaho, Ensei Uchiha heard news that was not entirely unexpected.

Minato Namikaze and his wife had died in battle, and the Third Hokage, Hiruzen Sarutobi, had once again assumed the position of Hokage.

Upon learning this news, Ensei Uchiha felt completely dazed.

The night of the clan massacre, it seemed, was destined to come.

He had clearly told Minato Namikaze everything; with the advantage of absolute intelligence, how could things have turned out like this?

Damn it, it must have been Hiruzen Sarutobi's cowardice and greed for power.

After cursing inwardly, Ensei Uchiha steeled his heart and headed straight for the vicinity of the Hyuga Clan, finding an opportunity to collect some blood and cells from the Hyuga Clan.

Plan one failed!

Plan two, cloning the Byakugan, begins!

Just as Ensei Uchiha was busy starting his grand cloning project, in a hidden corner of Konoha, a pale-faced Kushina Uzumaki was holding Naruto, looking with sorrow at Minato Namikaze, who lay on a bed not far away.

"Kushina, there is nothing that can be done about this. Minato was ambushed by an unknown enemy and suffered major mental trauma; it will be very difficult for him to wake up."

"But fortunately, with the help of the two sages, Fukasaku and Shima, Minato's life should not be in danger."

"However, it is hard to say exactly when he will wake up."

Jiraiya looked at Minato Namikaze lying on the bed, naturally feeling a great deal of pain.

But last night, he had been busy dealing with the Nine-Tails and Obito Uchiha, and he hadn't noticed what that half-black, half-white creature had done to Minato Namikaze.

Last night, with the advantage of intelligence, Minato Namikaze had almost pushed everything to the limit, not only summoning Jiraiya but even having Tsunade there to assist.

But no one expected that there would be a Transformation Jutsu so perfect that even the Byakugan, the Sharingan, and various detection ninjutsu could not distinguish the real from the fake.

A moment of carelessness allowed the Nine-Tails to break its seal.

Up to this point, it was actually fine; they had been prepared for the Nine-Tails to break the seal.

Even though the space-time ocular jutsu of Obito had caused a bit of trouble, it was still manageable.

Minato Namikaze had quickly used his rich experience to pin down Obito.

If he had killed Obito right then, or captured him, the subsequent events likely would not have occurred.

But Minato Namikaze had intended to save the lost Obito, and the moment Obito Uchiha's identity was revealed, Black Zetsu, who had been hiding in the shadows, quietly struck, launching a sneak attack on Minato Namikaze.

The rest was simple: after a veteran jonin of the Sarutobi Clan volunteered to use the Dead Demon Consuming Seal, the Nine-Tails was split in two and sealed separately within the bodies of Kushina and Naruto.

Jiraiya went to restrain Obito Uchiha, while Minato Namikaze took on Black Zetsu.

Perhaps no one at the time expected that Minato Namikaze would actually fail, and even suffer that kind of incurable soul damage.

Just like that, although Ensei Uchiha had changed everything, it seemed as if nothing had changed in the slightest.

Under the immense pressure of the Uchiha Clan Downfall night, Ensei Uchiha himself began cloning experiments on the Byakugan.

Cloning technology from his past life was actually quite simple: take a specific cell nucleus and an egg cell, transplant them into an embryo, and follow the normal gestation process.

To a certain extent, this did not count as cloning; it was merely allowing an individual with identical genes to develop once more.

However, in the ninja world, because of the existence of chakra, many of these processes had changed.

Cells not growing fast enough? Just intervene with chakra.

Cells growing in the wrong direction? Intervene with chakra to guide the development.

Cells growing incorrectly? Chakra... oh, there was no helping that; just record the experimental results and discard it.

After a period of effort, a white eyeball was successfully cloned by Ensei Uchiha.

However, this was only the most basic Byakugan, roughly similar to what a member of the Hyuga Clan would have at birth.

Although the Byakugan is relatively easy to awaken, it still requires a process to do so.

To accelerate the development of the Byakugan itself and simulate the awakening process, Ensei Uchiha had no choice but to deepen his testing and research into chakra.

Naturally, this in-depth research into chakra led to quite a few accidents.