Seijuro was currently inside the Uzumaki village. Flying Thunder God was working wonders for him.
One second, he was several inches within someone, the next, he was in the Uzumaki village—transportation had never been easier.
Aizen had managed to find some stuff out and was currently working on Pseudo Karma. The Uzumaki ninja were not up to snuff yet, which meant that the whole firepower of the Uzumaki village rested on Aizen's shoulders—and Aizen's alone.
There was also the fact that Aizen had full control over the Earth Kingdom and all that shit.
By Earth Kingdom, he meant Iwa. He didn't fully starve them; in fact, he gave them quite a bit of supply. Had to at least make his control seem less like a parasite—which he was. There were no ifs or buts about that.
He was a parasite, sucking Iwa dry of resources. But he at least had to make it look semi-believable.
Anyway, the mastermind behind so many things, Aizen Sōsuke, and the Karma wielder, the Genjutsu devil, the Phantom of Konoha—
Those two seemed to be ready to face each other down.
Aizen cracked his neck.
Using the Asura Path, he gave himself two extra pairs of arms—six in total.
He wanted to see which was superior:
The strength he gained, or what Seijuro had mastered.
Seijuro tossed a wooden kunai at Aizen, who simply smiled. Oh, so his other self was smart enough to not use metal.
If he had used metal, then shit would have been tragic.
Aizen summoned two chakra rods before rushing at Seijuro.
Seijuro turned on Sage Mode—his perfected Sage Mode, a fusion of Toad and Slug Sage Mode. He was working on Snake, since his other self had it, but right now, it wasn't stable enough.
Aizen smiled, entering Snake Sage Mode and Slug Sage Mode.
The two clashed.
One kick, a punch.
Another kick.
Aizen tried to grab him in order to drain his chakra, but—
He poofed away.
Seijuro appeared behind Aizen, throwing a kick that Aizen blocked. Aizen retaliated with a punch.
Seijuro parried the blow.
Using two of his arms, Aizen punched Seijuro in the ribs, causing his brow to furrow in pain.
That wasn't enough.
"Almighty Push."
Aizen used a smaller version—the area of AoE damage wasn't massive, but it was refined. All the focus was in one small spot.
He even launched several chakra rods and missiles toward Seijuro at the same time, causing all of those attacks to fly at him at breakneck speed.
Seijuro's brow furrowed—and in an instant, he vanished.
Aizen immediately turned around, black rod already in hand. With his Rinnegan, he could sense where the boy would reappear—and just as expected, Seijuro appeared behind him.
Seijuro's eyes widened. Aizen smiled slightly as he shoved the rod into Seijuro's body, summoning five more before shoving all of them in.
Seijuro coughed up blood.
He had more black rods in him than all the BBC Enjoyers in the world could possibly have.
Aizen smiled. This was too easy.
Crack.
As reality returned to normal, we could see that neither Aizen nor Seijuro had moved.
Aizen smiled... oh, so he could still be put under illusion.
How fun.
Seijuro opened his eyes... He saw.
So Aizen was that dangerous.
Well, since last time he rushed first—
"Let me do the honor this time."
As those words left his mouth, Aizen summoned a black rod and rushed at Seijuro.
Seijuro took out his specialized kunai, made of different material—material Aizen could not control.
He clashed with Aizen, keeping a close eye on his chakra for any signs of charging.
Aizen held up four fingers—his fingers transformed into missiles and launched toward Seijuro.
"I see... he can basically turn his body into a robot," Seijuro thought.
He slammed his hands into the floor.
"Earth Style: Earth Wall!"
KABOOM!
Seijuro felt the explosion slam against the wall. He didn't care. He went through several hand seals, first using Steam Release to boost his strength and speed, then tossed several kunai toward where Aizen was.
He made a clone that rushed Aizen, while Seijuro himself became the kunai—linked by a chakra thread, like a tactical wire.
Aizen and the clone clashed over and over again. That thin layer of chakra thread between Seijuro and the clone was barely noticeable.
The clone launched the kunai toward Aizen.
Aizen smiled and ducked under it, opening his palm—
"Almighty Push."
Seijuro's body was flung to the far end of the arena, and the kunai was sent flying in the opposite direction.
But the chakra thread between them tightened.
Aizen's eyes widened as he felt himself being wrapped tightly within it.
Hm.
Seijuro teleported to the kunai and threw it at Aizen, knowing there was an interval between each use of Almighty Push.
His guess—4.5 seconds.
Aizen, of course, dodged the kunai.
"I expected better from you—"
Before he could finish, he coughed up blood.
Looking down... there was a hand through his stomach.
Looking behind him, he saw Seijuro.
His gaze turned back to the Seijuro that threw the kunai—that one poofed away.
...Aizen smiled.
"I wonder how much... you can see with those eyes of yours..."
He didn't even seem mad. He got fisted.
As those words left his mouth—
Crack.
Reality shattered around them. Seijuro and Aizen were seen staring at each other again. Neither had moved.
However, Aizen's right Rinnegan seemed to have lost a tomoe. More or less, it deactivated, returning to just a regular Rinnegan.
That told Seijuro that his other half had used the power within that eye to turn that reality into an illusion.
Who said his right eye's ability was only to turn Genjutsu into reality?
What about the reverse?
"This Genjutsu battle is getting bothersome. Let me test out that Karma of yours," Aizen said calmly.
Seijuro nodded at his words. If they truly fought with Genjutsu allowed, that fight would drag on for hours. And probably be a pain in the ass to write about. You could think someone was losing—only to realize it was an illusion... within an illusion... within another illusion...
You get the idea.
Fun fact—this little clash of theirs?
Yes... only one second had passed since Aizen said to start.
So yeah, shit could get draining.
Anyway.
Seijuro activated his Karma. The purplish markings began appearing all over his body. One of his eyes became a Byakugan... while the other turned into a Blue Rinnegan.
Yes, that meant the broken ability of Urashiki was now his.
Seijuro created a chakra weapon, and Aizen summoned a chakra rod.
And like that, the two began dancing—sparks flew everywhere.
All of Aizen's attacks were perfectly blocked and parried by Seijuro.
It seemed that gaining the Byakugan and a Rinnegan through Karma Mode, Seijuro was able to keep up with the absurd amount of power Aizen had stockpiled in his time as a villain. And trust me—he had stockpiled a lot.
Aizen raised his hand.
Seijuro created a big-ass spear and slammed it into the floor.
Aizen smiled.
"Almighty Pull."
As the suction began, Seijuro resisted—thanks to the spear being embedded deeply in the ground.
Aizen didn't mind.
Using Snake Sage Mode, he made the floor obey him. Two hands rose from the ground, attempting to crush Seijuro. Meanwhile, the beastly Almighty Pull was still active.
So Seijuro made the best move possible—
He let himself be pulled toward Aizen, tossing a kunai at him mid-flight.
Aizen was forced to duck under it.
Seijuro vanished from his sight.
Aizen felt a spatial tear—behind him.
With the black rod in hand, he slammed it behind him.
Clang!
Only to hit the kunai.
'He teleported the kunai...'
Seijuro hadn't teleported behind Aizen.
Which meant...
Before Aizen could turn around—
He felt it.
"Chidori."
Blood trickled from his lips. Seijuro was faster than he thought.
...No bother.
Aizen's left eye began spinning rapidly—
Time skip – 2 hours later
Both fighters could be seen lying on the floor, gasping for air.
Both completely out of chakra.
Both equally injured.
Both...
Dead tired.
A/N...who actually win in a fight between the two, they have roughly the same IQ, in term of buff, while Aizen does have the rinnegan and a lot of Uzumaki grade sealing, his level is only slightly higher than Seijuro, not by much, remember, Aizen is like Seijuro when he is not holding back.
Seijuro does have the Karma and sage mode, so heh, who yall think winning, personally I think I balanced both of them well enough that, it could be a coin toss really.
If Mikoto or Kushina life in danger though, I have my money on Seijuro.