The direction of events once again exceeded Itachi Uchiha's expectations.
He had always thought that 'B' just wanted to use his power to clear out the fake who looked exactly like him.
But when the opponent took out Sasuke's Mangekyo Sharingan, he suddenly realized the opponent's intentions were probably not simple. Or rather, the opponent saw through his true feelings for Sasuke and used Sasuke's life to coerce him into submission.
Extending from this, he secretly speculated that the fake wearing his appearance was very likely created by the group of 'A'.
Perhaps it went out of control for some reason, so they needed him to deal with it.
As for the internal strife initiated by 'B' and being chased by 'A', he didn't believe it at all, because the timing of 'B's rebellion was too coincidental.
Of course!
The Five Kage and Nagato were not fools either. It was just that the situation in the Ninja World had reached this point, and the existence of 'A' made both sides feel like thorns in their backs, so they were willing to believe that 'B' initiated a rebellion and stalled 'A'.
All because they really couldn't solve 'A', so they could only hope for luck.
Having clarified these, even the consistently wise Itachi hesitated looking at the Sharingan in the small nutrient jar in his hand.
Because accepting this pair of Mangekyo Sharingan meant he agreed to cooperate with 'B'. No, should say cooperate with 'A'.
Whether to Nagato or Konoha, this counted as a kind of betrayal.
But if he didn't accept, the opponent could take away Sasuke's Mangekyo Sharingan, meaning they could take away Sasuke's life.
Even if Sasuke was suspected to be a member of the opponent's organization, Itachi couldn't take this risk.
Seeing Itachi opposite fall into silence, Karin didn't rush to speak, but waited quietly for Itachi to give an answer.
She actually didn't quite understand why Shinji was certain Itachi would return Sasuke's Mangekyo Sharingan, because once fused, two pairs of Mangekyo Sharingan would become one pair of Eternal Mangekyo Sharingan. At that time, the so-called returning the eyes would mean handing over the precious Eternal Mangekyo Sharingan at the cost of blindness.
Someone like Itachi who wiped out the entire Uchiha clan didn't look like someone who might hand over the Eternal Mangekyo Sharingan no matter how you looked at it.
However, doubts were doubts. Karin still executed meticulously according to Shinji's arrangement.
As for why Sasuke's Mangekyo Sharingan was in her hands, it was taken from Sasuke by Shinji as Akatsuki leader 'A'.
Sasuke, who had just used 'Izanagi-no-Mikoto', completely lost pupil power in his right eye, with recovery indefinitely delayed. So eager to restore pupil power, when Shinji contacted him using 'Magatama', he requested Shinji to restore pupil power for him.
Shinji originally didn't want to agree.
Mainly because Sasuke was too troublesome. If he helped him recover pupil power, he would definitely look for trouble with Itachi all over the Ninja World. And right now Shinji had no energy to clean up his mess.
But on second thought, Shinji felt that since Itachi was not the opponent of the fake right now, why not use helping Sasuke restore pupil power as an excuse to make Sasuke hand over his Mangekyo Sharingan, allowing Itachi to fuse a pair of Eternal Mangekyo Sharingan.
In this way, Sasuke losing Mangekyo Sharingan could calm down for a while, and Itachi could also improve his strength to solve the fake.
And with Itachi's feelings for Sasuke, Shinji wasn't worried that Itachi would refuse to return Sasuke's eyes.
So in the end, Sasuke could harvest a pair of Eternal Mangekyo Sharingan, and Shinji didn't break the promise of helping him restore pupil power. And the fake 'Itachi Uchiha' troubling Shinji would be solved by Itachi who obtained Eternal Mangekyo Sharingan.
Everything put to best use!
After weighing for a moment, Itachi finally said to Karin: "Please treat Sasuke well, I beg you! As for that fake, I will deal with him as soon as possible!"
The situation being so, Itachi could only submit and agree.
Moreover, this cooperation was not completely disadvantageous for him, because even without 'B' coming forward, once he knew someone was impersonating him to commit crimes in the Ninja World, he couldn't turn a blind eye.
"Okay, if you need assistance, you can notify me!"
Karin told Itachi a secret contact location.
Itachi nodded: "I understand."
Seeing Itachi agree readily, Shinji, who was silently observing here with 'Magatama', had a thought and instructed Karin again.
Karin was slightly stunned, stopping Itachi again: "Wait, I can also include a piece of information as a bonus, maybe useful to you!"
Itachi said: "Please speak!"
Karin said slowly: "High-intensity Yin Release chakra can balance the Yang Release chakra contained in Hashirama cells! And the unity of Yin and Yang can refine a little 'Power of All Creation', and 'Power of All Creation' is a rare power that can elevate the level of chakra!"
Itachi was stunned on the spot, then pondered carefully.
The information contained in Karin's few sentences might not be of much use to ordinary ninjas, but to a ninja like Itachi who had awakened Mangekyo Sharingan and had no way forward, it was incredibly precious information.
It could even be said to be information that could help him defy heaven and change fate!
"Eternal Mangekyo Sharingan can balance Hashirama cells? Could this be the secret of 'A' and others subduing 'Wood Release'?"
"Unity of Yin and Yang produces 'Power of All Creation'..."
"Elevation of chakra level..."
Through word-by-word analysis, the information Itachi extracted answered many doubts that had plagued him for a long time.
Rustle...
At this time, a slight noise came from the grass not far away.
Ordinary people might not notice such a slight noise. After all, there were small animals everywhere in the forest, and some movement was normal.
But Itachi and Karin were obviously not ordinary people!
Itachi restrained his thoughts, asking softly: "You do it? Or me?"
Karin said casually: "Let me do it!"
Swish...
Karin flashed into the grass not far away, then reached her right hand inside, dragging out a White Zetsu clone from the grass.
Throwing this sneaky White Zetsu clone fiercely to the ground, Karin formed hand seals with both hands: "Four Symbols Seal, Seal!"
Instantly, several ink-colored sealing formulas crawled onto the White Zetsu clone's body, sealing his chakra.
Having solved the spying White Zetsu clone, Karin teased: "It seems the Dark Akatsuki side doesn't trust you completely!"
The sealed White Zetsu clone shouted: "Itachi, don't believe her, I just came to assist you in searching for 'Upper Rank One'!"
Itachi's expression remained unchanged. Of course he knew these White Zetsu clones were monitoring him, just inconvenient to say it clearly to 'B'.
Picking up the White Zetsu clone, Karin threw it to Itachi, then continued: "Your body seems to have some problems!"
Rinnegan's powerful pupil power, combined with 'Mind's Eye of the Kagura's super strong perception, plus the special constitution of both Uzumaki and Senju clans, enabled Karin, a ninja not very knowledgeable in medical ninjutsu, to possess the special ability to perceive the opponent's physical condition.