Naruto: The Strongest Sage.

It was a pity that he couldn't do it in one go. But Qingye actually had prepared the Yin attribute chakra. It just might take some time.

The data that the laboratory can detect is limited. If you want more detailed data, you still need to continue to explore in actual combat in the future.

But this level is enough for Qingye now. At least at this time, Qingye has completely gotten rid of the weaknesses of civilian ninjas with insufficient chakra, insufficient endurance, and insufficient recovery ability.

Today, Aoba, with the help of Sage Mode, has begun to have the capital to fight against the high-end combat forces in the ninja world.

But this alone is far from enough. This level of combat power may be enough for the next two years. But in a few years, it will basically be useless.

In fact, in the past few years, he has not faced Nagato or Obito. Now no one in the ninja world can directly compete with Nagato's Samsara Eye.

Although Obito and Aoba knew the other party's information, they didn't know how to use Flying Thunder God. Even if they did, without the Flying Thunder God Second Stage that the Fourth Hokage used to perform, they couldn't defeat Obito.

The Akatsuki organization is still in the stage of accumulation and dormancy. There is no danger of direct confrontation for the time being. But Obito, this guy, comes to Konoha from time to time.

Especially since Aoba also captured a White Zetsu, it would be more likely to attract the other party's attention.

Fortunately, Aoba hadn't noticed Obito's whereabouts in the past few months. This made him feel a little relieved. It seemed that he should still be manipulating the Mizukage and torturing the Hidden Mist Village. This village that killed Rin was almost destroyed by Obito in the plot.

Aoba's success seemed to have stimulated Yumi, causing her to ask more than once to try it on herself.

But Aoba still has concerns. Because Yumi doesn't know Sage Mode. If she is given Hashirama's cells, the risk is actually quite high.

But if she doesn't have the transplant, Yumi doesn't have much time left.

Karin didn't know about this. But Yumi and Aoba knew it very well. Especially Aoba, he knew it better than Yumi herself. He would check up on Yumi every three days.

According to his examination, Yumi only has about half a year left to live. It is not obvious from the outside because Qingye used the life potion to replenish her.

But the life potion only treats the symptoms, not the root cause. It can heal external injuries, but it can't do anything about the root damage like Yumi's.

Therefore, the only hope at the moment is Hashirama's cells. After all, Hashirama's cells will reshape Yumi's body from the root. If successful, it will naturally restore her vitality.

"Have you ever thought about this, Yumi? This is not just your business. Karin has the right to know about this."

This is also the reason why Yumi and Aoba hesitated. This question is actually a bit cruel to Karin. After all, she is just a little girl who has just adapted to a new life.

She now has a home, a mother, friends, and lives a happy life. It is a bit cruel to tell her that her happy life is about to end.

Aoba did not continue to persuade her, but left the decision to Yumi.

The next morning, Aoba noticed that Karin did not go to school. He realized that Yumi must have made a decision at the memorial.

"Have you decided yet?"

"Yes, it's clear enough. I told Karin everything. Now, I have to face my fate."

"Okay. I'll inform Kakashi and ask him to be my assistant."

Originally, Aoba's surgical assistant was Yumi. Now, Yumi is a patient, so Aoba can only use Kakashi as a soldier.

"You want to transplant Hashirama's cells into Uzumaki Yumi?"

Kakashi looked shocked?

"Do you know what you are doing? Those are the cells of the first Hokage, do you know..."

Kakashi was a little emotional. He could barely understand why Aoba gave him the transplant, because he knew that Aoba was ambitious and wanted to do great things. But he couldn't understand why Aoba did this to someone around him, because Aoba had already told him before.

With all the conditions combined, the success rate of the transplant is only about 70%. And Uzumaki Yumi is not even a ninja. She just extracted chakra. So, her success rate may be less than 50%.

"What on earth are you thinking? Creating a Wood Release Army, unifying..."

"Kakashi, Yumi is going to die." Aoba's casual words stunned Kakashi.

"......What's the meaning?"

"It means exactly what it says. Yumi and Karin are both members of the Uzumaki clan. This clan sometimes has a special physique. Once a wound appears on the body, the vitality will leak out.

That is to say, if someone is injured, they can recover quickly by biting them."

Kakashi is no rookie. He has performed countless dark missions in the Anbu over the years and witnessed the dark side of the ninja world. He immediately thought of this. If this physique is discovered by outsiders, it will definitely be a disaster for Karin and her daughter.

"Where...did you find them?" Kakashi had already thought of something.

"Kusa Village."

"...A year ago, the Kusagakure Village had a negotiation with Konoha. Some of their ninjas died on the border between the Land of Fire and the Land of Grass. They requested the Land of Fire to assist in the investigation. But in the end, nothing came of it.

Calculating the time, you brought them back around that time. So, you didn't save them from the bandits. You snatched them from the Grass Country. You killed those Grass Ninjas."

"Yes."

Kakashi wanted to say that the Kusagakure and Konoha were allies. But after thinking about it, he kept his mouth shut. He had been to Kusagakure and knew very well what kind of people they were.

"Yumi's body is right there..."

"That's right, Yumi and Karin are both like that. They are worse than dogs there. They are just two pieces of rotten meat. Anyone can bite them at will. Yumi's body is exhausted because too much vitality has been lost."

Over the past year or so, I have tried various methods, but they were only temporary solutions. On the surface, she looked fine. But in fact, she only had less than half a year to live. "

"......" Kakashi was stunned. He couldn't imagine that the innocent, lively, and even mischievous little girl Karin had such a horrible experience. He couldn't imagine what Yumi, who was older than her, had experienced in those years.

"Does Karin know this?"

"Yumi has already told her. This is their joint choice. Yumi... is trying very hard to survive."

This time, Kakashi was really silent. After a long time, he finally spoke.

"When will the operation start?"

"Start with an assistant."

"Very well, let's go."