There are some issues here.
If we deduce based on the plot, there are two possibilities.
The first possibility is:
After Senju Hashirama's death, during the process of Senju Tobirama succeeding him as Hokage, the Uchiha Clan became dissatisfied with this arrangement, leading to internal strife.
However, the Uchiha Clan has now grown accustomed to peaceful days; there's no reason for them to rebel.
Unless.
Senju Tobirama deliberately created conflict.
But he is not that foolish either.
And the other possibility is:
After the First Shinobi World War ended, Senju Tobirama unfortunately died in battle, and the Uchiha Clan, having once again missed out on the Hokage position, was discontent with Hiruzen Sarutobi taking over as Hokage, so they began attempting to seize the Hokage position.
However, for some unknown reason, this struggle ultimately devolved into an internal conflict.
In Uchiha Tenxiu's view, this is the most likely reason.
After all, only the supreme position of Hokage could drive the Uchiha Clan to such mad thoughts and actions.
Especially for the Uchiha.
Its significance is immense.
After all, according to the promise made when the Village was founded, the Hokage should have been chosen from the Uchiha Clan.
But the Hokage position was snatched away by the more cunning Senju Tobirama, who used divisive tactics to win over hearts.
Coupled with Senju Hashirama's immense strength.
The Uchiha Clan grudgingly accepted this outcome.
However, when the Second Hokage was still a Senju, the Uchiha Clan began to grow dissatisfied.
Does it matter if the Hokage is Senju Tobirama?
What matters is that a Senju is still Hokage.
It was clearly agreed that the two Clans would jointly create the Village and take turns as Hokage. As a result, you snatched the First Hokage position. Senju Hashirama is incredibly strong, known as the God of Shinobi, fine, we, the Uchiha Clan, accept that.
But the Second Hokage is still one of you, isn't that deceiving us? It should be the Uchiha Clan's turn!
Facing Senju Hashirama, the God of Shinobi, no one could muster the will to resist, but facing Senju Tobirama, the Uchiha Clan was not particularly afraid. Coupled with losing the Hokage position twice in a row, the Uchiha Clan felt insulted.
And the Uchiha Clan happens to be emotionally sensitive people.
The Uchiha Clan, with their rich emotions, will inevitably become overly agitated once they encounter emotional deception.
But if it was just this grievance, while it wouldn't be enough for the Uchiha Clan to risk their lives and families, abandoning their peaceful lives to fight Senju Tobirama, they would absolutely not tolerate such humiliation and act like a coward.
There should be a process of protest!
"Hmm!"
Uchiha Tenxiu suddenly thought of something.
"That's right, it's Uchiha Setsuna, who hasn't been promoted to the high ranks yet. In the original story, he seemed to openly gather followers within the Clan, plotting a so-called rebellion, but the final outcome was that nothing happened, and he was only sentenced to imprisonment."
"And he was imprisoned within the Uchiha Clan, in the prison managed by their own Uchiha Police Force, which was basically like living at home; there were no severe punishment issues!"
"It seems this was the Uchiha Clan's signal to Senju Tobirama: if you don't give a good explanation, then don't blame us, the Uchiha Clan, for rebelling."
In fact.
Senju Tobirama did understand the signal given by the Uchiha Clan and began to implement conciliatory measures.
According to the outcome in the original plot.
Senju Tobirama not only took Uchiha Kagami as his disciple but also created the Security Department for the Village's affairs and entrusted it to the Uchiha Clan as a hereditary position for appeasement.
Even if there was a trap hidden within, the power it granted was a significant benefit, indicating that Senju Tobirama was unwilling to fight the Uchiha Clan to the death and destroy the Village.
This also indicates.
Up to this point, the Uchiha Clan was safe.
Then.
The turning point.
Should be the First Shinobi World War.
During the First Shinobi World War, the Senju Clan suffered immense losses, and their last top Ninja, Senju Tobirama, died directly in battle, instantly reversing the balance of power between the Uchiha and Senju Clans within Konoha. Even Hiruzen Sarutobi, who was temporarily appointed by Senju Tobirama, did not immediately become Hokage upon returning to the Village, and it was delayed for several years.
And during this period.
It was likely when the Uchiha Clan vied for the Hokage position and gradually triggered internal strife.
And the key factor in this was the exposure of the Forbidden Technique, Izanagi!
"But, Izanagi, under the watch of Uchiha Raimon, only existed within their own Clan; it was impossible for such a Forbidden Technique to be leaked, unless something happened that forced the Uchiha Clan to use Izanagi, or..."
Beneath Uchiha Tenxiu's expressionless face, his heart was boiling with killing intent, "Or perhaps, even without my existence, without Elder Raimon stationed at the factory outside the Village. Even without these Interests involved , Elder Raimon would still die, and the inheritance scroll would be stolen and used by others to sow discord within the Clan!"
With the plot of his previous life and the events of this life, Uchiha Tenxiu quickly calculated everything in his mind.
After all, in the genjutsu just now.
Uchiha Tenxiu also learned that the reason Elder Raimon was able to return alive this time was because he had performed an Izanagi Transference Seal on himself a year ago.
And the reason this Transference Seal was used.
It also relates to the alcohol factory. Because the factory was outside the Village, a powerful person had to be stationed there, fearing that other Clans or foreign spies would destroy or sabotage it, so Uchiha Raimon personally took charge.
Being close to Konoha, weaker Ninja would not dare to provoke the Uchiha. Those who would come would inevitably be powerful Ninja. And for such strong individuals to have ideas about the Uchiha Clan's "gold mine," Uchiha Raimon himself didn't think they would lack their own trump cards. Out of the caution of a Sengoku Ninja, he preemptively used one of his treasured Three-Tomoe Sharingan.
And it was this use of the Sharingan.
It changed Uchiha Raimon's inevitable death in the original history.
Otherwise!
Without the immense profits from the alcohol, Elder Raimon would not have been stationed outside the Village, and without being stationed outside the Village, he naturally wouldn't have used the Izanagi Transference Seal to guard against enemies.
And once there was no Transference Seal.
Then Elder Raimon, who heard the news of the Millennium Elixir and was impatient, would inevitably go out to search rashly.
At that time.
The result would inevitably be.
Death...
"And once Elder Raimon dies! Yukino probably wouldn't be able to hold on either..."
Uchiha Tenxiu could imagine that after Uchiha Raimon's death, the scroll would either be stolen by enemies or brought back to the Clan by the searching Uchiha Clan members.
From the plot of his previous life.
No matter the outcome.
The Izanagi scroll.
It would inevitably appear in the hands of the Uchiha Clan at the appropriate time, thereby triggering the Uchiha Clan's civil war.
The most crucial point, based on who gained the most benefit in the end, who then must be the mastermind.
There was basically no one else besides the Hokage lineage.
Plus the ambush by the Earth Spider, a "Konoha" ally.
The exposure of the Clan's intelligence Ninja's information.
And, the Uchiha Clan's Forbidden Technique scroll.
No one but the Uchiha Clan could open it.
Therefore, there is only one truth!