In Konoha: Eating Goro Goro no Mi at start.

"This is newly established institution - Konoha Research Institute."

Senju Tobirama brought Rei and Tsunade to a place.

"Konoha Research Institute?"

Rei was stunned when he heard this and looked at the building in front of him that looked like a tall tower.

It's really you, Senju Tobirama.

"Well, it's mainly used to study some tools or techniques."

Senju Tobirama nodded upon hearing this, and while walking towards the research institute, he spoke to Rei beside him.

"So Tsunade and I will develop our senjutsu here next?"

Rei followed behind Senju Tobirama and asked him.

"Well, you and Tsunade go , I'll come and join you guys when I have time."

Senju Tobirama nodded upon hearing this, and said to Rei as he walked towards the research institute.

"Hokage-sama!"

And at this moment, a man in a white robe and a ponytail came towards them.

"Ah... it's Hiruko, how is the development of the Chimera Technique going?"

Senju Tobirama glanced at Hiruko and asked with a chuckle.

It was by chance that Tobirama Senju discovered Hiruko's development of the Chimera technique.

He tried to merge a crow with himself so that he could grow wings, and this idea aroused the interest of Tobirama Senju.

After all, in Senju Tobirama's opinion, this is not impossible.

This idea is basically consistent with the secret technique of the Inuzuka family, so Senju Tobirama talked about it with Hiruzen.

It was this conversation that made Senju Tobirama suddenly realize that there were many ninjas in Konoha.

They might not have sufficient innate talents, but they had many creative ideas.

Therefore, Tobirama Senju took out part of the funds to establish the Konoha Research Institute.

It is to provide a channel for those ninjas who lack innate talent but have many creative ideas, and who have taken actions to achieve certain results.

"Thanks to your support, the progress is very good."

Upon hearing this, Hiruko said to Senju Tobirama with a smile on his face.

Humble... humble, stay?

Rei was dumbfounded. If he remembered correctly, the development of the Chimera technique required human experiments, right?

But on second thought, it was no problem.

After all, it was Senju Tobirama. Apart from anything else, the development of the Impure World Reincarnation technique also required human experiments.

However, Rei certainly would not miss this opportunity.

Ask first whether it is useful or not.

" Chimera technique?"

" Ideally, it can devour a ninja with a kekkei genkai and thus master its kekkei genkai ."

Upon hearing this, Senju Tobirama nodded and said to Rei.

Then he said to Hiruko.

"The main purpose of Rei and Tsunade coming here this time is to develop senjutsu. You can communicate well with each other in the future."

Senju Tobirama said to Hiruko and Rei.

"Senjutsu?"

Hiruko was stunned when he heard this and asked in confusion.

"You two can communicate the specific information later. For now, I will let Hiruko find a laboratory for you two."

Upon hearing this, Senju Tobirama chuckled and said to Hiruko.

"OK."

Upon hearing this, Hiruko nodded, and then looked at Rei and Tsunade.

"please follow me."

Perhaps because he is valued by Senju Tobirama, Hiruko now looks very confident.

Every move and gesture reveals his calmness.

After saying goodbye to Tobirama Senju, Rei and Tsunade followed Hiruko and walked in one direction.

"Mastering the Kekkei genkai by devouring a ninja who possesses a Kekkei genkai, this technique is truly terrifying."

As he walked forward, Rei said with a chuckle.

"Being stabbed to death by a kunai or being devoured, the outcome is both death, isn't it?"

Upon hearing this, Hiruko said to Rei with a smile on his face.

"The latter is obviously more painful."

Tsunade said softly upon hearing this.

"Yes, being plundered is always painful, but whether it is a war or a mission, the enemy's goal is always to plunder. Since they have committed the act of plundering others, they should naturally be prepared to be plundered, right?"

Upon hearing this, Hiruko asked Tsunade back.

"Of course, you are right, but should I keep some distance from you to prevent you from robbing me someday?"

Rei raised his eyebrows slightly, with a slight smile on his face, and asked Hiruko as if jokingly.

"Whether it's a kunai or a ninjutsu, I will never use it on my companions. If I abandon my companions and act alone, I will definitely be a loser."

Upon hearing this, Hiruko chuckled and shook his head, then said to Rei.

Not being alone and having friends around is the life that Hiruko longs for.

After a pause, a smile appeared in the corner of Hiruko's eyes and he said jokingly.

"Although I have to admit that the bloodline of the Senju and Uchiha families is really exciting."

"You speak as if your Chimera Technique has already been successfully developed."

Rei chuckled upon hearing this.

Upon hearing this, Hiruko paused slightly and turned to meet Rei's eyes which were filled with a hint of smile.

"What Rei-kun said... is really hard to refute."

Pursing his lips in a somewhat depressed manner, Hiruko turned around and continued walking forward.

"But I believe that one day I will be able to develop it."

There was a hint of paranoia in Hiruko's tone.

"Is this place okay?"

Hiruko brought Rei and Tsunade to a laboratory.

Although it was called a laboratory, there was actually nothing inside. There was a bed and a table.

"I don't know what you will use for your experiments, so there is nothing now. When your experiments have a direction, you can write an application form and give it to me. The village will send it to you."

Hiruko casually sat on the bed that was obviously not for resting and said to Rei.

"Well, these are enough for now, after all, we don't have a clear direction yet."

Rei nodded and sat on the bed used for rest with Tsunade.

"So, can I learn about what Senjutsu is? If possible, I may be able to provide some help to Rei and Tsunade."

Hiruko licked the corner of his mouth and asked Rei.

Even though he had been valued by the Hokage, Hiruko still couldn't resist the urge to show his own value.

"In fact, it is a technique that guides nature energy into the body and merges with chakra. We call it the Sage Mode. The next development direction is probably to use nature energy to merge with the body, so as to achieve the purpose of permanently strengthening oneself."

Rei nodded and said to Hiruko.

"Nature energy?"

Hiruko was stunned when he heard this. This is really an unheard-of energy.

"That's right."

Rei nodded when he heard this. Rei directly told Hiruko about the information about sage techniques.

On the one hand, since Senju Tobirama said that he could communicate more with Hiruko, it means that Hiruko is trustworthy.

On the other hand, the technique of Chimera Technique does have something in common with sage techniques, and Hiruko's research results can indeed bring a lot of help to Rei.

"Is it possible for this energy to merge with the body?"

Upon hearing this, Hiruko asked Rei.

"Based on the currently available information, it can be determined that nature energy can be integrated with the body of a living being, thereby extending lifespan, opening up spiritual intelligence, and enhancing strength. Among them, the longest lifespan has reached thousands of years."

Upon hearing this, Rei said to Hiruko.   

"That's really an amazing technique."

Hiruko nodded, pondered for a moment, and said to Rei.

"I personally feel that there are some similarities between the permanent sage technique and the ChimeraTechnique, that is, the final stage is to merge the nature energy with the body."

He said to Rei.

"Yes, so, Has Horuko made any progress in this regard?"

Rei asked Hiruko.

"There is indeed some progress."

He said to Rei.

"The problem that bothers me now is how to merge the plundered energy with myself..."

Hiruko sorted it out and told Rei and Tsunade his ideas.

As Hiruko explained, Rei's brows slowly began to frown.

It was at this time that Rei realized the difference between the sage technique and the Chimera Technique.

Nature energy is pure energy, but the Chimera Technique is not pure energy.

Hiruko's experiment is still at the level of blood and flesh fusion.

Its research data cannot be said to be crucial to Rei, but it can only be said to be better than nothing.

"What a good idea."

As Hiruko's explanation gradually came to an end, Rei praised him at the right time.

Regardless of whether Hiruko's results are helpful to him, since Hirukohu is willing to share them, then some praise is naturely justified.

"If possible, I think I need a monkey." Rei said to Hiruko.

"Okay, I will send it to you later." Hiruko nodded and stood up.

"Then you two should have a good rest here. I hope my information can be of some help to you two."

"Well, I benefited a lot from listening to your explanation."

  Rei also stood up and said to Hiruko.

"Yeah."

Upon hearing this, Hiruko chuckled, nodded, and turned to leave.

In fact, it was with the explanation that Hiruko gradually realized that his current research results did not seem to be of much help to Rei...

Watching Hiruko leave, Rei let out a sigh of relief.

"I thought it would be of some use."

Tsunade said to Rei.

"Who said it wasn't? But Hiruko seems to be quite enthusiastic."

Rei came to Tsunade's side upon hearing this. It was indeed surprising that he could tell his research results to someone he had just met, even with the presence of Senju Tobirama.

  (End of this chapter)