Uchiha Nan: Tobirama, I Used Impure World Reincarnation to Erase Your Sins!

Is there any justice in this world?

Is there no law anymore?!

He, the Second Hokage of Konoha, was trapped in this dark and sunless underground laboratory, working for free as a slave for an Uchiha.

The perpetrator slapped the victim and made the victim laugh and say, "Good job!"

Uchiha Nan actually did such a despicable thing!

Tobirama Senju suppressed his anger, not wanting to continue arguing with Uchiha Nan about this topic, and directly changed the subject, steering the conversation towards Orochimaru.

"Tobirama, you have to trust my judgment. Orochimaru's talent for Ninjutsu research is absolutely the strongest in the Ninja world right now."

Uchiha Nan had great confidence in Orochimaru. As a man Boruto: Naruto Next Generations, Orochimaru's research achievements in Ninjutsu had been tested in actual combat, and he had escaped death countless times. In the research field of life-saving Ninjutsu, even Tobirama Senju would admit that he was inferior.

"Hmph, the strongest in the Ninja world?"

Tobirama Senju snorted coldly, his expression showing disdain. This guy clearly didn't take him seriously at all.

"Tobirama I said the strongest Ninja world, it certainly didn't include you. I was referring to the current Ninja world. After all, you're already dead, so why would I include you in the rankings of the living?"

Uchiha Nan said sarcastically, "It's really amusing to bicker with Tobirama every day and see Tobirama Senju frustrated."

"You bastard, go to hell!"

Tobirama Senju couldn't hold back any longer and punched Uchiha Nan in the face. This bastard was provoking him again; he had to teach him a lesson.

"Tobirama, the world is so beautiful, yet you are so irritable. This is not good, not good at all."

Uchiha Nan effortlessly caught Tobirama Senju's fist. At this moment, Tobirama Senju's fist was neither fast enough nor ruthless enough, so even if it hit him, it wouldn't hurt.

Orochimaru watched with great interest, witnessing the two Hokage of Konoha putting on a full-blown fight right before his eyes—a sight that rarely occurred more than once in a decade.

Furthermore, there must be something going on between the Second Hokage and the Lord Hokage, and the truth behind it is definitely not what the Lord Hokage just said.

That's really interesting!

"Tobirama, Orochimaru is still here."

"You wouldn't want me to punch your clone to pieces, would you?"

Uchiha Nan waved his hand. Tobirama Senju was furious, but he still had to endure it. As long as Tobirama Senju kept enduring it, he would soon get used to it.

"Snort!"

Tobirama Senju withdrew his fist and turned to look at Orochimaru.

It's very ordinary.

"Tobirama, I'm entrusting Orochimaru to you. From now on, you will be his teacher."

"Hmph, not just anyone can become my disciple."

Tobirama Senju Tobirama Senju displeased. He was the Second Hokage of Konoha, the strongest scientific research master in the Ninja world. Not just any Tom, Dick, or Harry could become his disciple!

Orochimaru stood to the side, and upon hearing Tobirama Senju's words, he did not show any fear, but instead gave Uchiha Nan a grateful look.

The Lord Hokage has already elevated me so much, personally introducing me to the Second Hokage. This crucial opportunity is one I must fight for myself.

Orochimaru then stepped forward and looked at Tobirama Senju, saying:

"Second Lord, I will do my utmost to prove my abilities!"

Tobirama Senju he watched Orochimaru boldly step forward. This brat actually has some guts.

"Out of respect for the evil... uh... Third, I'll teach you for a while, until your talent meets my standards."

Tobirama Senju respect for Uchiha Nan, Tobirama Senju reluctantly accepted Orochimaru his student, agreeing to dedicate a little time each day to teaching Orochimaru.

Students who are too slow are simply not worth teaching; Tobirama Senju simply doesn't have the time.

Uchiha Nan is getting more and more outrageous; he's making research projects on a whim.

Recently, he even obtained several Insects from the Aburame Clan, asking him to research a new type of Insects that could produce large amounts of sugar simply by basking in the sun. Faced with such an idiotic client, Tobirama Senju wished he could punch Uchiha Nan to death.

Laymen have no idea how difficult this is; Uchiha Nan doesn't understand scientific research at all!

However, Uchiha Nan disagreed and directly asked Tobirama Senju if the research funding was insufficient. If not, Uchiha Nan said he could provide a large sum of money.

I know a thing or two about scientific research!

Later, Tobirama Senju gave in, proving that Uchiha Nan indeed understood scientific research.

However, given the short timeframe and heavy workload, Uchiha Nan decided to take a step back and instead focus on researching Insects that could produce large amounts of sugar by eating only weeds and Insects that could mass-produce protein blocks. The task of developing the protein block production method was also assigned to Tobirama Senju.

Of course, Uchiha Nan's research tasks did not stop there.

Cement, radio, Chakra train, railway track laying, iron ore smelting upgrade technology, high-yield crop seeds, Chakra battery, internal combustion engine

Various research tasks were assigned to Tobirama Senju Tobirama Senju, causing his workload to surge to an unbelievable level. The number of his clones was no longer enough to keep up with Uchiha Nan's demands.

After seeing that Tobirama Senju Orochimaru, Uchiha Nan pulled Tobirama Senju aside and whispered something to Tobirama Senju.

"Tobirama, you shouldn't teach Orochimaru Ninjutsu."

"I'll handle this!"

Uchiha Nan had already made a future plan for Orochimaru, making sure to keep a close eye on Orochimaru and direct all his research talent towards improving productivity. Uchiha Nan didn't want Orochimaru to touch any of those strange Ninjutsu developments or human experiments.

What do you mean by that?!

"You're not worried that I won't teach me well? I'm a master of Ninjutsu research, not some mere brat."

"He's a master of forbidden techniques in the Ninja world!"

"Don't corrupt Orochimaru. One research master obsessed with human experimentation is enough for Konoha. Just train Orochimaru to be a research master in science and engineering."

"You know better than I how many people died in the process of inventing the Impure World Reincarnation Ninjutsu."

"Desecrating the souls of the dead will not end well!"

May the Sage of Six Paths forgive your sins, Amitabha, Amen.

Uchiha Nan curled his lip, interrupting Tobirama Senju, and spoke up.

"Hmph, superficial!"

"Extremely superficial!"

Tobirama Senju was somewhat exasperated; how dare Uchiha Nan criticize him in this way?

Uchiha Nan's skill in using the Impure World Reincarnation was in no way inferior to his own.

Tobirama Senju was the originator of the Impure World Reincarnation, and he could immediately see that Uchiha Nan's mastery of this Impure World Reincarnation technique was so high that he had surpassed his master.

"You're even better at using the Impure World Reincarnation technique than I am. If I get my comeuppance, your fate will definitely be worse than mine!"

Tobirama Senju immediately retorted, stating that he firmly opposed Uchiha Nan's shameless behavior.

"Tobirama, you're wronging me."

"You've always been the one I resurrected using the Impure World Reincarnation technique!"

"You have desecrated the souls of the dead. I have Impure World Reincarnation technique to fight for the future of the entire Ninja world. This is to help you atone for your sins."

"I've done a truly meritorious deed; at the very least, I'll have many descendants and live to be a hundred years old."

"I won't end up alone like you."

Uchiha Nan smiled, his few words piercing Tobirama Senju's heart like a sharp sword.

Garen's Whisper truly broke through defenses in silence!

"You born evil Uchiha brat, I'll execute you on the spot!"

Tobirama Senju's defenses were completely breached, and he charged towards Uchiha Nan with bared teeth and claws, determined to fight Uchiha Nan to the death today.

Either Uchiha Nan will die, or Tobirama Senju will perish. Today, only Uchiha Nan will die!

With one hand Hand Seals, Uchiha Nan immediately subdued Tobirama Senju, rendering him completely immobile.

"Tobirama, your self-control is terrible; you need to practice!"

"There are younger relatives here today. If you've calmed down, just blink."

After about a minute, Tobirama Senju finally mustered his courage and regained his freedom.

This Tobirama Senju glared fiercely at Uchiha Nan, then led Orochimaru to the experimental table next to him, intending to let Orochimaru practice on the basics. At the same time, he also gave Uchiha Nan a long list of precious books left behind by Tobirama Senju, all of which were given to Orochimaru.

Then Uchiha Nan walked over to Tobirama Senju, who was busy at the experimental table.

"Tobirama, how's the Hashirama Cells experiment going?"

Uchiha Nan was very concerned about the progress of the Hashirama Cells experiment. As an orphan with no siblings, he had virtually no chance of transplanting Izuna Uchiha Mangekyō Sharingan to awaken the Eternal Mangekyō and achieve a qualitative leap in his strength, just like Madara Uchiha.

Therefore, Uchiha Nan was full of expectations for the Hashirama Cells experiment. Besides his own lottery system, the best way to further improve his strength was through Hashirama Cells.

Overuse of the Mangekyō Sharingan can lead to blindness, but Hashirama Cells can not only greatly extend the use time of the Mangekyō Sharingan, but also allow one to obtain a portion of the Sage Body.

Its powerful regenerative abilities and vast Chakra reserves made Uchiha Nan extremely envious.

In the Hokage world where the power of heaven and earth ultimately belongs to oneself, no matter how powerful one's own forces are, they are not as important as one's own strength.

Upon hearing the words "Hashirama Cells, "Tobirama Senju stopped his experiment, a complex expression on his face.

For some time now, Tobirama Senju has been conducting Hashirama Cells experiments following Uchiha Nan's ideas.

Unexpectedly, Uchiha Nan's thinking was actually correct. The cells of the Uchiha, the Sharingan, and the Sharingan's ocular power all have varying degrees of inhibitory effects on Hashirama Cells.

By mixing Hashirama Cells with a special potion in the correct proportions and injecting them into the Uchiha's cell tissue, the Hashirama Cells will gradually fuse with these tissue cells.

Through various tests and experiments, Hashirama Cells have been shown to greatly enhance the vitality and eye power of the Uchiha, and even grant them some of the characteristics of Sage Body.

Perhaps we could be even bolder and recreate the Wood Release that allowed our elder brother to suppress the entire Ninja world!

However, if Hashirama Cells are injected into the cells of an ordinary person, the ordinary person's cells will be eroded and destroyed by the Hashirama Cells. Unless Sharingan cells from the Uchiha are added, the ocular power will be neutralized and suppressed, as if Hashirama Cells were born to enhance the strength of the Uchiha.

Faced with this result, Tobirama Senju was completely baffled. What incredible luck had the Uchiha had to be able to be so compatible with Hashirama Cells?

Despite being from the Senju Clan are of the same lineage, they are surprisingly resistant to outsiders, only "slightly" better than ordinary people!

The preliminary experiments with Hashirama Cells have now been completed. The next step is to conduct human trials, which will require testing various data on human subjects to determine the most suitable Hashirama Cells solution.

In the future, Uchiha cells can be incorporated into Hashirama Cells to dilute and suppress Hashirama Cells powerful corrosiveness. Perhaps one day even ordinary ninjas will have the opportunity to enhance their strength by injecting Hashirama Cells.

However, the thought that the Uchiha would be the biggest beneficiaries of Hashirama Cells Tobirama Senju feel like he had eaten a pile of excrement—a mixture of dryness and looseness.

That's so unfair!

Tobirama Senju recounted the recent progress of the experiment, which greatly excited Uchiha Nan, who was finally able to further improve his strength.

Seeing Uchiha Nan's overjoyed expression, Tobirama Senju felt even more displeased. Uchiha Nan's strength was about to increase again, and his chances of turning the tables and becoming the master were becoming even slimmer.

"Hmph, don't be too happy yet."

"What I've said so far are all preliminary experimental conclusions. They haven't been tested on humans yet, so everything is still unknown. Therefore, I advise you not to inject the current Hashirama Cells solution lightly."

Uchiha Nan nodded; he understood the principle that a wise man does not stand under a crumbling wall.

"If you want to continue the next phase of the Hashirama Cells experiment, you must provide me with members of the Uchiha for human experimentation."

Upon hearing Tobirama Senju's words, Uchiha Nan fell into thought.

Human experimentation carries too many uncertainties. According to Tobirama Senju, he wanted to test the limits of Hashirama Cells on the human body, which would likely require risking human lives in the experiment.

When it comes to the lives of his clansmen, Uchiha Nan must consider this carefully.

"Can we use regular ninjas to fill in first?"

"Finally, I must take responsibility for the lives of the Uchiha Clan Head were subjected to human experiments."

Uchiha Nan decided to sacrifice his own comrades rather than himself, so he used ordinary ninjas as substitutes. After the Fourth Ninja world War, Konoha's dungeons were filled with prisoners from enemy villages, which would be excellent experimental subjects.

"Yes, but it will take longer, and there are many more experimental subjects that will require more deaths."

Uchiha Nan nodded in agreement, accepting Tobirama Senju's conditions, as long as it provided more security for his clansmen.

The experimental materials: the Konoha dungeon is full of prisoners; their lives were no longer their own the moment they were captured.

In the Ninja world, there is no such thing as treating prisoners of war well; prisoners are simply spoils of war for the ninja villages.

As for the duration of the experiment, that's even simpler; just keep pushing Tobirama Senju his limits.

Time is like water in a sponge; you can always squeeze some out if you keep trying. Tobirama Senju must have been lazy every day when I wasn't around.