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(Mirror World)

"Aizen..." Allen stepped forward, forcefully.

Allen's stomp on the ground stopped the wind that had been traveling across the frozen wastelands, suspending it as if it were now thicker than tar.

He knew there was a time limit, and that limit was when the restriction imposed by Void was broken. After that, Allen would no longer be able to defeat Aizen with his current power.

Aizen observed his opponent, and in his gaze, there was no hatred or fear, but there was no disdain in his eyes either. How could there be?

No one knew better the number of problems Allen had faced than his viewers. Step by step, they had accompanied him... some earlier than others, some with loyalty and affection, some with bad intentions, others with skepticism, and some even harboring negative feelings toward Allen. Yet, each had witnessed his journey to this point.

There was no way Aizen could hate him after seeing him go through all those struggles and enemies. Of course, this wouldn't shake his sword or cause doubt in his actions.

Allen, on his part, had a calm expression. Despite the inner rage from the injuries his girls had suffered, the image of Aizen was reflected in his pupils.

Allen never imagined that in his life, he would stand before him, let alone as enemies.

"Aizen, let's finish this!"

Allen vanished, and when he reappeared, it was with Aizen's sword stopped in midair. However, the restriction was still active, making Allen stronger than Aizen at this moment.

Allen tightened the grip of his Black and Scarlet zanpakuto; with devastating power amplified by cursed energy, Chi and his reiatsu attacked Aizen.

Aizen frowned as he was pressured. He tried to adapt, but countless attacks came after the first, each strike aimed at breaking his defense and cutting through his body.

"Allen Walker... You truly are terrifying... The only reason I was able to pressure you is that my power was massively superior to yours..."

Allen's sword strikes stopped. Aizen saw that Allen's zanpakuto had disappeared, but his fists now glowed with a golden light.

"Don't speak too much or you'll bite your tongue..."

Allen struck Aizen's jaw from below with his palm. The sound was thunderous due to the strength of the blow. Without giving Aizen time to recover, Allen placed his glowing hands on Aizen's abdomen.

Sensing danger, Aizen teleported, but it seemed it was too late.

"...!" Aizen felt his regeneration slow down. "I see, it wasn't an attack..."

When Allen placed his hands on Aizen, it was to induce his Chi. Since it wasn't harmful, it was easy to perform, and Aizen didn't recognize it as an attack. This Chi interfered with the flow of spiritual energy, causing Aizen's regeneration to slow down.

"Terrifying..."

Aizen opened his eyes. One might think that instantaneous regeneration and immortality were such terrifying abilities that they would be hopeless, but the young man before him had found a way to deal with that power in a short amount of time.

Allen crossed the distance in an instant, holding his sword. Aizen thought of stopping Allen's attack, but Allen's gaze and his previous knowledge of him made him change his mind.

Aizen dodged the sword by a hair's breadth, but still, a small cut appeared on his cheek.

"...!"

Aizen raised his hand and, without a word, unleashed a powerful attack of spiritual energy onto Allen.

Allen received the attack calmly as his Clown Crown: Divine Comedy Version split it in half.

'That boy used the world-cut with his zanpakuto and hid it with spiritual energy!'

Allen cut through the attack and charged toward Aizen. The swords clashed with a sharp sound that resonated across the dead planet.

The monster was Aizen... The villain was Aizen... And yet, why did it feel like he was the one under pressure?

"I see... This is what it means to fight against Allen..."

Allen's sword dropped but did not clash with Aizen's this time. At the last moment, it disappeared and reappeared after Aizen's zanpakuto had crossed its path.

It was incredibly dangerous, as Aizen's zanpakuto barely grazed Allen's neck, but it was Allen's zanpakuto that cut through Aizen's chest.

Aizen's expression was disturbed while Allen remained calm the entire time, even as his neck was almost cut off.

"..." Allen brought his hand to his neck and used chi to heal himself.

Aizen watched this in disbelief. Just moments ago, Allen could barely breathe under his pressure, and now, it seemed like Aizen was at a disadvantage...

Allen didn't pay attention to Aizen's reactions. His mind was solely focused on defeating him, and his body moved accordingly.

Allen used his zanpakuto while increasing his strength in a colossal way, and with that, he hit Kyoka Suigetsu; this opened Aizen's defense for a moment. No mercy, without giving him time, Allen buried his hand in Aizen's chest.

"It was unpredictable and difficult to avoid the attack?... very good" Aizen even in that situation remained calm

"Hollow: Purple..."

Aizen's chest vanished as if it were disintegrated.

"Does this bring back memories?" Allen taunted.

Then, he kicked Aizen, sending him into the sky.

'He plays with his opponents' reactions...'

A fight is harmonious with specific rhythms. When both combatants are of a similar level, many techniques can easily be countered. However, Allen often alters the timing of his attacks, either stopping midway or suddenly speeding up. Of course, this happens so quickly that most people don't realize it.

In practical terms, this causes opponents to clumsily miss blocking the attacks, In addition to making it seem like Allen is effortlessly dodging them.

Aizen defended himself with a wall of void, but Allen sliced through it with ease and grabbed Aizen by the face, dragging him just as Aizen had done earlier.

Allen threw Aizen before using his zanpakuto to launch multiple slash projections at him. Aizen blocked them all except for the last one, which severed one of his arms.

"Allen's attacks had chi....' Aizen thought for a moment and cut off his hand. Once the cut area disappeared, Aizen repaired his arm.

"Tsk..." Aizen frowned, as due to the Chi influence, he couldn't regenerate.

Allen's gaze had turned cold and frustrated. "Aizen, enough already... Let's end this farce..."

Aizen halted his movements and watched Allen in silence before nodding.

"Are you sure? Because that will leave your viewers unsatisfied..."

"I know..."

Aizen's voice had a calm tone and Allen's had a somewhat frustrated tone.

...

Gwen – Allen?!

Felicia – Why?!

Kara – What happened?!

Natasha – Allen, is something wrong?!

The chat didn't understand either. It seemed like an intense battle, but suddenly, Allen stopped it.

What happened?

Allen refused to keep pretending with Aizen, and now he wanted clear answers.

...

...

...

The conflict moved elsewhere...

It was a Japanese-style room, with sliding wooden doors and tatami mats. A stark contrast to the previous battle.

Allen's words still hung in the air, but what did he mean by "ending this farce"?

No... that's not a valid question because everyone had already noticed a huge inconsistency.

Aizen Sosuke... this man had enough power to destroy all of Seireitei by himself. So why hasn't he done it? Why is Aizen sitting in this small shop as if he were a mere imitation of Urahara Kisuke?

Allen sat in front of the man, who had once again returned to his harmless scholar appearance. The hypocrisy in that appearance made people feel nauseous, especially because everyone knew that this man was far from harmless.

Aizen took a sip of his tea, eyes closed, and then his gaze landed on Allen, who hadn't touched his drink.

"It's a good tea…"

"Even if it's the best tea in the world, I won't drink it with you..." Allen squinted, "Don't get confused, I have no intention of getting along with you, and after you dared to hurt my dolls, there's nothing I want more than to rip your head off... but I'm more tired of this farce, this world that resembles Bleach but clearly isn't..." Allen's voice became more serious, "Why you're here and not in the King's palace?"

"I see, there are many questions you could ask... Why doesn't Kurosaki Ichigo even exist? Where is Zaraki Kenpachi? How did I kill Yhwach? Why is Kurosaki Ichigo's mother alive but his father isn't? Why does Urahara Kisuke seem like an imitation of me?" Aizen smiled slightly, "But your main question is, with all the power I possess, why haven't I taken over the world?"

"..."

The gray and brown eyes locked in silence with a terrifying calmness.

"Forgive me for answering your question with another question..." Aizen's eyes gleamed, "Tell me, what makes you think I haven't already?"

"..."

Allen prepared himself to use all of his power if necessary. Even if the consequence was being expelled from this world, if Aizen turned out to be too dangerous, he had to eliminate him.

The walls of the room were destroyed, revealing the outside. This wasn't a room inside a house but a structure of four walls and a roof created within the mirror world.

Outside, a frozen wasteland could be seen, but in the blink of an eye, everything changed. The sky turned rainy, and dry trunks became large green trees.

Allen touched the environment, which was entirely composed of reishi.

"This is the Soul Society..."

He remained calm, but his surprise was no less than that of the Chat.

Aizen didn't teleport them; it seemed he had altered the mirror world at will. This was what he had done when activating his Bankai if he had done so.

...

Thor – How is this possible?!

Tony – I originally thought it was an illusion, but it must be a form of large-scale reality alteration!

Whis – This would definitely be a grave crime in our world... modifying Zeno-sama's creation is unthinkable.

Beerus – What an irritating guy, I want to destroy him...

...

"I know everyone is curious, so I'll explain…" Aizen smiled, reminding them all that he was aware they were watching, "Kyoka Suigetsu can hypnotize many people, he even did it with Yhwach after becoming the god of this world, so it's no surprise that I can apply the same concept... on a large scale."

Allen furrowed his brow, "Is this an illusion?"

"No... I think I didn't explain myself clearly," Aizen stood up and began to walk in the rain, but he didn't get wet. The raindrops disappeared before touching him, "If I was able to deceive God at that moment... what makes you think I can't do the same with the world?"

"…!"

...

Athena – Huh?!

Gilgamesh – Nonsense!

Rick – Arrogant bastard!

The Emperor – Someone like that should be condemned to eternal death in life…

McDragon – Piece of crap!

PercyJ – Dude, if you didn't understand, don't pretend you did, they'll explain it later.

McDragon – ... I'm sorry

...

Allen looked at Aizen with disgust. He understood the concept, but in practice, it had to be something impossible. In the world of Jujutsu Kaisen, one of the main villains, Mahito, spoke of an interesting concept about how the body follows the shape of the soul. This was demonstrated by his power—he, who could manipulate souls, could alter the human body, turning people into monsters, tools, objects, weapons, whatever.

What Aizen is saying is that he applied his hypnosis to the world itself, and as a result, reality was altered. Let's assume that everything in the world is connected—if Aizen hypnotizes the world into believing that the sky is red, the sky on every planet that exists will turn red.

As ridiculous as it sounds...

Aizen Sosuke found a way to apply Kyoka Suigetsu universally...

...

(Aizen being Aizen scaring the hell out of everyone... 🍷🗿)

...

While most were filled with terror, worry, and fear, and his dolls with hostility, Allen remained calm, 'Aizen had already achieved it; he had the world in his hands...'

[That's right... but]

Many people noticed that this didn't answer anything. The question still hadn't been answered—why wasn't Aizen ruling the world from the King's palace? Now, even though it seems he has absolute power in this world, he's still drinking tea in a small room.

Aizen turned toward Allen, "The answers are ahead…"

As the questions piled up, Allen decided to follow Aizen.

Allen was about to use his Reiatsu to defend himself from the water, but 2B appeared by his side with an umbrella.

"Master…" Allen could feel the concern in her tone. The danger Aizen posed had massively increased, and Allen now saw him as a villain from his world.

"Don't worry." Allen stroked 2B's head to calm her down; while Aizen was scared, it did not scare the current Allen.

...

Allen followed Aizen's back, which didn't seem to be in any hurry.

Allen started to get impatient until he heard the sound of swords clashing.

Before Allen, a strange vision became clear—A young Aizen and a young Urahara were fighting. Both wore academy apprentice uniforms.

Aizen stopped and watched them in silence. Allen wanted to ask but decided to do the same.

"Damn it, Aizen, do you know what you did to the world?" Urahara attacked Aizen, but he blocked the strike.

"Urahara Kisuke, I see no reason to stop myself. I know you have it; we can fix this world together…"

"Shut up, you're a prisoner, I'll make sure to lock you up!"

The fight continued, but it wasn't anything impressive. They were both just shinigami apprentices, not even as strong as a regular shinigami. Of course, their swordsmanship hadn't been lost. Another detail is that none of them seemed to see, hear, or feel them as if they did not exist.

"The Hogyoku is something as incredible as it is terrifying. It may seem like a wish machine, but it has will and temperament…"

Aizen spoke calmly as he watched his young self fight with Urahara Kisuke.

"Thanks to you, my perspective on the world changed, and as a consequence, this world was reset, because apparently that was my wish, and the Hogyoku granted it."

With this, everyone understood why Aizen and Urahara appeared to be unwilling in the private chat.

Aizen went back to the past, but Urahara did as well. Both retained their memories, but there was something strange.

"Aizen, answer me—how did you go from being a villain capable of destroying entire civilizations... to a librarian in the human world?"

"..."

"What?"

While Allen was trying to understand what was happening in this world, the shock struck as Aizen's sword pierced Urahara's chest. It was a grave wound, as it pierced his heart. Allen watched as the light in Urahara's eyes went out.

Before Allen could ask anything, the scene in front of them changed, and this time it was Urahara who was killing him.

"Aizen, what is this?!"

The scene changed again, and this time two shinigami captured them.

"All fighting is forbidden!" shouted a shinigami. "You will be punished, and don't be surprised if you lose the chance to become a shinigami."

The scene changed again, and this time it wasn't Aizen vs Urahara, but Aizen vs Kyoraku Shunsui.

Allen felt as though he were in a multiverse, where every blink revealed an alternate future.

Aizen smiled slightly and spoke the words Allen hadn't expected, "Allen Walker, I know what you're thinking, and I'll give you another question—who says this was the first time the world was reset?"

"..."

Allen's blood ran cold, "Aizen, how many times was this world rebooted?!".

"..."

"Aizen Sosuke tell me how many times have you and Urahara restarted this world?!!"

===

A/N: There is no need to complicate with Aizen's Bankai, simply take the power of his shikai and apply it on a universal scale. 🍷🗿