This is a good question!
Black Zetsu also wants to ask this question!
Exactly who left the Senju Clan's bark, and who altered the content on it, why is the history recorded on the bark so absurd!
In fact, Black Zetsu knows very well.
The Six Paths Sage, Otsutsuki Hagoromo, wasn't a good son, nor even a good father, but no matter how rebellious his nature was, it wouldn't have been to the extent of leaving such preposterous historical records on the Senju Clan's bark!
To be honest.
Black Zetsu actually very much wants to admit that the history originally recorded on the Senju Clan's bark and the Uchiha Clan's stone tablet is the same so that it can save a lot of effort.
However…
Why does Akihara Kagura seem completely unaware of these things?
Black Zetsu's heart is filled with uncertainty, is there really no one behind this little fellow, or does he simply not know any of this, and has just purely obtained a piece of bark?
"That's right."
After thinking for a while, Black Zetsu decided to first attempt to deceive Akihara Kagura's trust: "The history recorded on the Senju Clan's bark is indeed exactly the same as the one originally recorded on the Uchiha Clan's stone tablet, both were altered by the Six Paths Sage…"
"The Six Paths Sage detected my existence and, not wanting anyone to discover that I was once Kaguya's will, used methods to obscure history and rewrite my identity, claiming that I was his split-off dark will, so I would never gain the ninjas' trust…"
To make the histories of the Senju Clan's bark, the Hyuga Clan's piece of wood, and the Uchiha Clan's stone tablet correspond with the history it narrates, Black Zetsu had to admit this fact.
This was a lie, but also a test.
However, when Black Zetsu tried to test Akihara Kagura with these deceitful words, it suddenly felt that what it said seemed reasonable!
Because the presence of the Senju Clan's bark…
Really could obscure history, really could confuse its identity!
That piece of Senju Clan's bark was clearly aimed at it, and that fictitious and ridiculous history made it become the dark will of the Six Paths Sage, someone nobody would ever trust, while causing everyone to be wary of it, this dark will of the Six Paths Sage!
The record on the bark…
Indeed could alert the Ninja World to the revival of the Ten-tails!
Because the records on the bark keep reminding everyone that this dark will of the Six Paths Sage wants to use the Ten-tails to conquer the Ninja World, this would certainly raise caution among those who read the content of the bark!
That piece of bark…
Indeed could completely erase the truth of Kaguya's revival!
Black Zetsu suddenly recalled the Six Paths Sage, that guy's strength was indeed formidable, with considerable wisdom, and he would not be restrained by his character.
The Six Paths Sage…
Would only do what he thought was right!
He wouldn't care in the slightest if something damaged his reputation!
The existence of the Uchiha Clan's stone tablet and the Senju Clan's bark could indeed perfectly achieve the Six Paths Sage's ideas!
After all, they were the joint ancestors of the Uchiha Clan and the Senju Clan, and taking extreme measures to accomplish objectives was always an innate ninja mindset!
Wait a minute…
There is one more problem…
There's a timeline that doesn't add up…
After the death of the Six Paths Sage, I altered the stone tablet; even if the Six Paths Sage noticed my existence during his lifetime, it would be impossible for him to predict that I would alter the stone tablet, right?
Or is it that…
The modification I might make to the stone tablet...
Was also within the Six Paths Sage's plan?
Just when Black Zetsu was a bit uncertain, deceived by its own lies, Akihara Kagura suddenly provided Black Zetsu with direction, gaining its trust.
"Mr. Black Zetsu."
"The content on the bark was fabricated by me."
Akihara Kagura's words almost caused Black Zetsu's brain to shrink, but he ignored Black Zetsu's mindset and continued nonchalantly: "The history on the bark was altered by me, and it indeed left the story of the Six Paths Sage sealing Kaguya…"
"..."
Black Zetsu's body began to tremble.
It almost deceived itself!
As a result, this bastard Akihara Kagura told it, just now it was being deceived, and this bastard altered the history left by the Six Paths Sage, while Black Zetsu was wasting time speculating if there was someone behind this bastard!
"I saw the original content on the bark…"
Akihara Kagura glanced at Black Zetsu, calmly stating: "It recorded the stories of ancient times, the Six Paths Sage indeed noticed you left by Kaguya, and knew you once deceived his son Indra; that piece of bark was his backup plan…"
After Akihara Kagura finished speaking, he reached out and picked up the fishing rod by the lakeside, continuing carelessly: "But I noticed your presence, so I specially altered the story, wanting to make you completely break with Uchiha Madara and be abandoned by the entire world…"
"Why…"
Black Zetsu's mind was close to collapsing.
This bastard…
How dare he speak such words!
Its thousand-year plan was ruined, the Uchiha Madara it carefully deceived turned against it, all of this was this bastard's scheme!
This damn it…
Why does the Ninja World have someone like Akihara Kagura, this bastard!
If only Otsutsuki Kaguya hadn't given birth to the Six Paths Sage, the Ninja World wouldn't have someone like Akihara Kagura, why does the Ninja World have such a person…
The schemes of humans are so deep…
Black Zetsu feels that it has lived for a thousand years, seen countless conspiracies and tricks, yet it can't compare to the insidious and despicable nature of this bastard Akihara Kagura!