[Border of the Land of Lightning]
There were two people with wings on their backs, rapidly heading toward Iwagakure.
They were Yagura and Rengoku.
"It's a pity Kumogakure didn't suffer much, we only made them lose a bit of money," Yagura's tone was full of regret.
Kumogakure had always been an ambitious village, they had basically attacked every other hidden village at some point.
Their feud with Kirigakure was even a blood feud.
As long as it was something harmful to Kumogakure, Yagura was always happy to see it happen.
"Heh!."
Rengoku chuckled lightly, "Their Two-Tails jinchuriki Yugito Nii is dead and that's still not a big loss?"
"What?"
Yagura's expression went blank, "Yugito Nii is dead?"
Rengoku pointed at himself, "Yeah, that's right, I did it."
Once he said that, Yagura was no longer sleepy at all, "Wasn't she traveling together with Killer B?"
Rengoku shook his finger, "No, there were also two thousand Kumogakure shinobi."
"And with that many people protecting her, you still managed to kill Yugito Nii?"
Rengoku pointed at the ground beneath them, "Don't I know Shadow Stealth?"
Yagura cursed with a laugh, "Cut it out. Even if you know Shadow Stealth, you're telling me Yugito Nii and Killer B wouldn't notice?"
"I also had to attack them several times in a row before I found the chance to kill Yugito Nii."
"I also took quite a heavy hit."
Although Rengoku said it very casually, Yagura actually believed it.
After all, killing a jinchuriki is not easy at all.
"You went around such a big circle just to kill Yugito Nii?"
"Judging from your strength, if you can kill Yugito Nii, you should be able to kill Killer B too, right?", Yagura asked, curious.
Rengoku shook his head, "It's still not that easy. Killer B's strength is on a completely different level from the other jinchuriki."
"Kumogakure's revenge is probably going to be even fiercer then," Yagura sighed.
These past years Kumogakure had been used to running rampant, they were always the ones bullying and scheming against others.
Yet in Rengoku's hands they had stumbled again and again.
Three years ago Yugito Nii was captured alive, and three years later today Yugito Nii was killed by Rengoku.
But the situation now was not the same as back then.
Konoha no longer had the Nine-Tails.
This time it was only because they air-raided Kumogakure, and Kumogakure's rear lines caught fire, that they had to pull back.
Rengoku pulled his hand back slightly, then punched forward.
"The whole point is to make Kumogakure pull their forces back, then send even more people into the Land of Fire."
Yagura could never guess what Rengoku was thinking, so at this moment he just honestly asked, "Then what are we going to Iwagakure for this time?"
"Of course, to make Onoki and the others feel at ease about sending troops."
———
[Konoha Village]
[Orochimaru's Laboratory]
"This time the first step is to draw some of your blood. If the first step succeeds, we'll perform surgery to remove a portion of your liver."
"Are you scared?"
Rengoku was stroking Karin's hair, explaining today's surgery process to her.
Karin giggled, "Shishou, I'm not a child anymore, why would I be scared?"
"You still are," Rengoku reminded her.
Karin had just turned 11. In Rengoku's world, she would not even have finished elementary school yet, so of course she was still a kid.
Even though Karin's body was developing quickly and already looked like an adult, Rengoku had never taken her words seriously.
Karin pouted, very displeased, "Shishou, I'll grow up!"
"Alright, alright, you'll grow up in the future."
"Hmph! I'm ignoring Shishou! Lord Orochimaru, let's go draw blood."
Karin stamped her foot and followed Orochimaru out.
Rengoku laughed. Karin was just like all the other brats, always wanting to grow up faster.
But most people, after they grow up, want to go back to their childhood.
After changing his clothes, Rengoku lay down on the operating table. Even though the second stage would only happen if the first stage succeeded, Orochimaru still had Rengoku directly prepare for the second experiment.
He had confidence in his own experiment.
On the other side, Karin had a full 1000 milliliters of blood drawn.
Karin's body was extremely healthy right now, and on top of that she had the Water of Life flowing into her.
The blood she lost could regenerate very quickly.
However, to make the surgery more convenient in a bit, Karin still inhaled anesthesia and fell into a deep sleep.
Once everything was ready on this side, Tsunade pushed Karin over to Rengoku's side.
Then she started giving Rengoku the blood transfusion.
Looking at that big pouch of blood, Rengoku was a bit puzzled.
"Drawing that much blood, is Karin going to be alright?"
Tsunade gave Rengoku a slightly amused look, "What are you worried about with me here?"
Orochimaru was clearly rather excited, a faint fanaticism on his face. It seemed he had long been eager to start today's experiment.
"Karin's body is already close to being in optimal condition,"
"This is just to help the cells that invaded your body from Karin adapt."
Rengoku nodded. The transfusion did not have any special feeling, it didn't hurt or itch, and he even had time to chat with Tsunade.
"How's Nawaki's talent?"
After all, Nawaki was the direct bloodline of Senju Hashirama, so Rengoku was at least somewhat curious.
Tsunade's lips curved in a slight smile. Clearly, Nawaki's revival made her very happy.
"His talent is not bad, but it's only at the level of an outstanding Senju clansman, he can't be compared with Grandfather."
Rengoku pointed at the blood being transfused into him, "Isn't this paving the way for him?"
Of course Tsunade also knew how terrifying the enemies in the future would be.
She didn't even have time to go to the gambling halls anymore, she was spending all her time doing experiments and staying with Nawaki and Dan Katō.
"Orochimaru's data is fine, but Grandfather's cell solution is much more complicated than your situation."
Rengoku was quite optimistic, "It's fine, now that we have a good start, we can take it slowly later."
The 1000 milliliters of blood finished transfusing very quickly, and Tsunade pulled out the needle.
Under the machine's monitoring, Orochimaru was watching Rengoku's physical reactions.
"My calculations were correct. Your body has been invaded by too many of Karin's cells, so now your body no longer rejects Karin's blood."
"Next is to perform surgery on you two."
Rengoku nodded, "Alright, you can start."
Orochimaru directly took out a nebulizer and shoved it into Rengoku's mouth.
Rengoku took a deep breath. Very soon the feeling hit him, his vision sank, and he instantly lost consciousness.
On the other side, Tsunade was disinfecting Karin, then she cut open Karin's abdomen.
She directly cut out a portion of Karin's liver.
Here, Orochimaru opened up Rengoku's abdomen and transplanted Karin's liver onto Rengoku's liver.
But in this step, Orochimaru made a move he had not told Rengoku about.
He passed the piece of liver he had cut from Rengoku over to Tsunade.
"Give this to Karin as a replacement."
Tsunade frowned, "You never said this was part of the procedure before."
"It won't do any harm, this way it will be easier to observe the data on Rengoku and Karin's fusion."
Tsunade thought for a moment, "Then you'd better be careful when Rengoku wakes up and comes after you."
Orochimaru stuck his tongue out and twirled it in a circle, smiling, "Don't worry, as long as you don't tell him, he'll never know."
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