Konoha, I have the Herrscher of the End core in my body.

"So this is how the Impure World Reincarnation of the Second Hokage works. Orochimaru is really amazing."

Looking at the Impure World Reincarnation in the Book of Sealed, Naruto couldn't help but admire Orochimaru even more. The original intention of the Second Hokage to invent the forbidden technique of Impure World Reincarnation was to cooperate with his Multiplying Exploding Talisman Technique, so the strength of the Impure World Reincarnation was not very strong.

The Impure World Reincarnation technique combined with the Multiplicative Explosive Talisman technique is an infinite blasting technique invented by the Second Hokage. Speaking of which, it is very similar to a certain ninjutsu of the Second Mizukage.

It was probably because Orochimaru was unable to learn the technique of multiplying Exploding Tags that he began to improve the Impure World Reincarnation, but it ended up turning into one of the most perverted ninjutsu in the ninja world.

The second generation's Impure World Reincarnation would not be considered a very powerful ninjutsu if it were not for the cooperation of the Multiplicative Exploding Talisman Technique. As for why Orochimaru could not learn the Multiplicative Exploding Talisman Technique, it was normal. This is a ninjutsu that needs to be combined with the Flying Thunder God Technique. If you want to summon a large number of Exploding Talismans in an instant, only the Flying Thunder God Technique can do it.

"The three ninjutsu of the Second Hokage can only be used in conjunction with each other to exert a more powerful power. Unfortunately, Impure World Reincarnation is a forbidden technique that plays with the soul and cannot be used openly."

If the Impure World Reincarnation did not care about its own evaluation at all, it could be used unscrupulously, but as the Second Hokage, it is not possible. After all, he is the Kage who rules a village, so he still needs to be great and glorious.

"Looks like we'll have to go find Orochimaru later."

For Naruto, Orochimaru is a treasure. Not to mention his scientific research ability, just because of the power he possesses now, Naruto also needs to find him.

His next goal is to unify the ninja world, which requires talents. Although his strength is very strong and he can destroy the five major ninja villages, he will need people to manage it afterwards. If he starts from scratch, it will take at least ten years to see any results. It is not easy to build an organization from scratch.

For other people, using ten years to unify the ninja world is naturally a very good thing, but for Naruto, he doesn't want to waste time on this, so he can only rely on the existing forces.

Orochimaru's Sound Village and the Akatsuki organization are the forces he needs to rely on.

He does have the idea of ​​unifying the ninja world, but he will not devote his entire life to this like Yahiko and Nagato did. And just kidding, with his current lifespan, he himself doesn't know how long he can live. But what is certain is that as long as he is not beaten to death, there should be no problem living for a thousand or ten thousand years, and this is the minimum.

"Since these guys can invent walkie-talkies, why can't they invent telephones or mobile phones? If they had these, things would be much simpler."

After sorting out the technology tree of the ninja world, Naruto was speechless again. There were electricity, television, computers, movies, even walkie-talkies, and even video surveillance. They had all of this during the Konoha Chunin Exam, but there was no telephone or network for long-distance communication.

Long-distance communication mainly relies on summoning beasts or sending people to notify. Naruto hates this situation. It can be said that if there were telephones and mobile phones in the ninja world, many things would be much simpler.

For example, if bandits in remote areas had mobile phones, the villages and towns in those remote areas would not be exploited, and they would not even have to travel a long way to the ninja village to issue missions.

"It would be even better if there was an internet connection. How about going to other worlds?"

After sorting out the current situation in the Ninja World, Naruto began to ponder. He didn't want to waste too much time in the Ninja World. The main reason was that if he possessed the power of the Herrscher of the Void, he would not be limited to this world. He could fully utilize the power of the Herrscher of the Void, pass through the imaginary space, enter the quantum sea, and then go to other worlds.

For him, the Ninja World was just his first stop.

Instead of letting the ninja world start researching telephones and mobile phones and then inventing the Internet, which doesn't know how long it will take, he can just take the technology from other worlds.

"Once things here are over, let's start the action. My current strength should be enough to protect myself. If I go to a certain world, maybe I can scare those people."

Naruto made a decision very quickly. For him, unifying the ninja world was easy. He could make the five major ninja villages surrender or disappear in one day. However, the subsequent governance would be a big trouble. However, it would be much more convenient if he had technology.

For example, the farmland in the Ninja World is not much different from that in the ancient Celestial Empire in the previous life. Oxen are used for farming, and no one has done any research on grain production. There is no problem of food shortage in Konoha, but in some remote areas, food is a big problem.

If the Wave Country was not close to the sea and could fish, it would be impossible to do so with its territory of just one island.

Of course, in addition to this, there is another more important reason for Naruto to go to other worlds, that is, if he wants to become stronger, he must leave the Ninja World. The power of the Herrscher mainly depends on knowledge, knowledge of physics and electromagnetics, which the Ninja World does not have.

"I've finally waited for you, Uchiha Itachi."

On the fourth day after Naruto returned to the Land of Hot Springs, he was studying the Book of Seals when he received information from Konoha that Uchiha Itachi appeared, and the provider of the information was his Shadow Clone.

Konoha has suffered such a great change, and with Sasuke's defection, Uchiha Itachi, who is obsessed with his brother, will definitely go back to Konoha to take a look. Although Naruto doesn't know when Itachi will arrive in Konoha, he can just sit back and wait, and a shadow clone can do the job.

"The first Hokage of Konoha is truly a big shot."

At a river on the outskirts of Konoha Village, Uchiha Itachi and Hoshigaki Kisame encountered the First Hokage. This result made Uchiha Itachi and Hoshigaki Kisame a little confused. After all, the opponent was the legendary God of the Ninja World. Compared to Uchiha Madara's unknown reputation, the First Hokage was very famous in the Ninja World. Even though he was now a reincarnated body, he should not be underestimated.

"Are there any survivors of the Uchiha clan?" The First Hokage looked at the forehead protector on Itachi's forehead, which was equivalent to the one worn by Konoha's rebel ninja, and couldn't help but sigh deeply. He regarded Itachi as a survivor of the Uchiha clan after its extermination. Compared to the Second Hokage's clan's call for the killing of the Uchiha clan, he did not have any ill feelings towards the Uchiha clan, so he had no intention of taking action.

As for Itachi, he naturally had no intention of fighting the First Hokage. Strictly speaking, Itachi was very speechless. He had never imagined that Konoha, the leader of the five major ninja villages, would be destroyed like this. That was not all. Even the Third Hokage and Danzo, the leader of the organization, were dead. As a result, no one knew his identity as a spy.

This result made him wonder for a moment whether he should contact the First Hokage. After all, compared to the Third Hokage, he had never seen the First Hokage, but had only heard of his legend. He had a deal with the Third Hokage, Danzo, and needed to ensure Sasuke's safety. Now that these two were dead, the deal naturally fell through.

"Hey, the First Hokage, we meet again."

Just when Uchiha Itachi and Hoshigaki Kisame were confronting the First Hokage, Naruto appeared beside the three of them with a flash of body jutsu and greeted the First Hokage with a smile.

"What are you doing here again?" Seeing Naruto, the First Hokage immediately became alert. He thought that in his life, except for facing Uchiha Madara, he could be said to have no rivals. Even the Nine-Tails was caught by him like a chicken.

However, fate has its twists and turns, and this time it was his turn to be caught by the Nine-Tailed Fox. He didn't want to experience this again.

"I'm not here to see you. I'm here to see these two, Uchiha Itachi. If you want to see Sasuke, then follow me."