Setsuna's genjutsu had indeed worked.
The movements of the berserk, semi-tailed beast transformed Seiryū suddenly stopped, and the pattern of the three-tomoe Sharingan appeared in his eyes, rotating slightly.
Bzz bzz bzz.
As if affected by the genjutsu, the chakra fluctuations around Seiryū surged continuously at this moment, even letting out a series of buzzing sounds.
The chakra cloak covering the surface of his body began to gradually dissipate at this moment, revealing Seiryū's true body.
Seeing the berserk Seiryū stop moving, and the sinister chakra around him begin to gradually dissipate, Setsuna also began panting heavily.
Such an intense battle had consumed no small amount of his chakra.
The cold look in Setsuna's eyes did not fade, and he slowly breathed out.
Staring at Seiryū, who was controlled by genjutsu in front of him, he said coldly, "To be able to reach this level, your talent is indeed worthy of being called the strongest genius in Konoha's history."
"But the strength of the Uchiha clan is not something you can imagine!"
"Now pay the price for your stupidity!"
The Sharingan truly was a power that restrained tailed beasts.
With only one genjutsu, it could control them.
"Hmph! So you really won't just stand by and watch? The Hokage faction."
As he spoke, Setsuna noticed Tsunade rushing over with an icy expression, and only snorted coldly.
Tsunade's intervention was not beyond his expectations.
She could not possibly watch her disciple die at his hands.
But it was useless.
This brat had to die today!!
Without wasting any time, Setsuna tapped his foot and rushed toward Seiryū.
The short blade in his hand ignited with flames once more, and just as he was about to slash down at Seiryū, who had lost the ability to resist, ending his life.
However, at this very moment!
An even more turbulent and violent sinister chakra erupted from Seiryū's body, and dark red chakra surged into the sky.
With Seiryū's body as the center, a boundless hurricane was stirred up.
Waa waa waa! Crack crack!
The hurricane swept out, sharp screeches echoing through the air, and the terrifying, heavy dragon vein chakra cracked the ground beneath Seiryū's location, tearing open lines of fissures.
"What is going on?"
Setsuna, who had been charging forward, was also forced back by this violent hurricane.
A solemn look appeared on his face. "Has he gone completely berserk!?"
Completely berserk?
Of course not!
Instead, Seiryū's idea had succeeded!
"Hehehe, thank you for your dōjutsu power. It let me recover my reason, and it also gave me the chance to control the power of the dragon vein."
As that excited, unrestrained voice rang out, the slightly rotating three-tomoe Sharingan in Seiryū's eyes disappeared at this moment, and his gaze also became clear.
The other party's genjutsu had indeed taken effect.
But it had not taken effect on him directly. Instead, it had taken effect on the consciousness of the dragon vein chakra.
His berserk body had essentially been controlled by the dragon vein's consciousness.
In addition, because of the system, he could be immune to genjutsu!
The other party's genjutsu would only fall upon the dragon vein's consciousness.
Once the dragon vein's consciousness was suppressed by the dōjutsu power of the Sharingan, Seiryū's own consciousness naturally regained clarity, and he instantly recovered his reason.
There was not even a need for the backup plan of the First Hokage's necklace to take effect.
But what came next was the key!
Could he use this chance to control and subdue the dragon vein chakra for his own use?
"Then, pay your rent, dragon vein! Last time it came too suddenly, and I wasn't prepared. This time is different!"
With a movement of Seiryū's thoughts, his consciousness invaded the Yin Seal.
He directly faced the dragon vein's consciousness sealed inside the Yin Seal!
The dragon vein's consciousness, or rather the dragon vein's source, was a dark red, dragon-shaped mass of materialized chakra.
At this moment, its eyes showed the pattern of the three-tomoe Sharingan.
Back then, under the power of the system, the dragon vein source beneath Rōran had been forcefully absorbed into Seiryū's body.
And sealed within the Yin Seal!
The relationship between the two was almost the same as the relationship between a Jinchūriki and a tailed beast.
Only the method of sealing was different.
Because Seiryū had never released the Yin Seal before, he had not known about the existence of the dragon vein source and consciousness.
He had only discovered it when he released the Yin Seal just now.
The dragon vein's source and consciousness were inside the Yin Seal.
According to the relationship between a tailed beast and a Jinchūriki, if Seiryū wanted to fully control the dragon vein, he needed to reach "harmony" with the dragon vein.
But the dragon vein was not a true tailed beast after all.
Although it had its own consciousness, it could not communicate freely like the other tailed beasts.
The dragon vein's consciousness was more like a latent consciousness.
It could only distinguish between friend and foe.
And Seiryū, who had sealed it into the Yin Seal, was naturally also regarded as an enemy by the dragon vein's consciousness. There was no possibility of communication!
As long as there was too much dragon vein chakra, the dragon vein's consciousness would devour Seiryū's reason and throw him into a berserk state.
So.
If Seiryū wanted to control the dragon vein, he needed to control it with absolute power.
Whoever was stronger would take the upper hand.
But Seiryū did not take the ordinary path. He had come up with the idea of borrowing external power, allowing Setsuna's genjutsu to successfully control the dragon vein's consciousness.
It gave Seiryū this opportunity, an excellent chance to control the power of the dragon vein!
"Obediently hand over your power!"
The corner of Seiryū's mouth split into a grin.
With a movement of his thoughts, his own will came into contact with the dragon vein's consciousness, which was controlled by genjutsu.
He began seizing the dragon vein's source power!
It was similar to Naruto pulling chakra from the Nine-Tails in the original work.
The difference was that the dragon vein's consciousness, already controlled, did not resist Seiryū seizing its source power at all!
Bzz bzz bzz.
As Seiryū began seizing the chakra of the dragon vein's source and marked this dragon vein source chakra with his own imprint, some changes also began to happen to his body.
The dark red, arrogant chakra cloak gradually dissipated.
In its place was a purple chakra cloak that flickered like flames!
The originally sinister, violent, and fierce chakra fluctuations also changed somewhat, becoming stable, gentle, and controllable.
This was.
Dragon Vein Chakra Mode!
[Ding, mission complete. Rewards being issued.]
Just as Seiryū gradually gained control of the dragon vein source chakra, the system notification sounded in his mind.
All information regarding Cero appeared in his mind.
Its principles, usage, and techniques.
At this moment, Seiryū already knew how to use Cero.
Speaking of it, it was not difficult either. Gather spiritual pressure at a single point, then release it instantly, erupting into a spiritual pressure beam capable of destroying most things!
Its principle in this world had similarities with the Tailed Beast Bomb.
Do not forget.
In the original work, Naruto who had gone berserk with four tails, and Killer B, in the complete Eight-Tails form, could also release the Tailed Beast Bomb in the form of a chakra beam.
At most, it was only a change to the shape transformation of chakra.
There was not even a need to try.
Seiryū felt that Cero could definitely be used in this world.
(To be continued.)