Bleach: No cheat codes, he joined Aizen's side.

Chapter 213, Section 211: Everything about you was part of my plan.
"So, when exactly did you begin to believe that you weren't experiencing a mirage?"

Higashino Shuichi's voice rang in Aizen's ears, and then Aizen realized that the Higashino Shuichi in front of him had turned into Kisaragi Shusuke.

This is impossible!

Aizen was very clear about Higashino Shuichi's abilities. Putting aside Higashino Shuichi's Bankai ability to borrow a sword, he could only borrow Bankai. Even if he could borrow Shikai, he would need Aizen's consent.

But I never received a request from Higashino Hideichi, so how did Higashino Hideichi make me fall into the illusion of a mirage?

unless
Aizen considered only one possibility.
"You guessed it, didn't you?"

Seeing the changing expression on Aizen's face, Higashino Shuichi knew that the latter had thought things through.

After all, he had already presented Aizen with enough information, but Aizen had simply ignored it.

"It was the person who created this special space. He absorbed my spiritual pressure earlier, and it wasn't just simple absorption."

Aizen finally remembered the information he had been ignoring: the person who created this special space was neither Higashino Shuichi nor Kisaragi Shusuke.

Furthermore, he had never appeared in his field of vision, and it's even possible that he wasn't even in this space at all, but was hiding in another space, constantly spying on his battle with Higashino Shuichi.

It is precisely for this reason that Higashino Shuichi does not need to worry that this Grim Reaper will also be affected by Aizen's Kyoka Suigetsu during the battle.

More importantly, this Shinigami absorbed his spiritual pressure, and its purpose was very likely to simulate his Zanpakuto's abilities!

As for Higashino Shuichi and Kisaragi Shusuke, they were both just smokescreens released for the sake of this Grim Reaper's power.
"Hehehehehe, what a clever scheme!"

Aizen laughed heartily, looking up at the sky.

Higashino Shuichi's plan was meticulously crafted, with each step linked to the next. He even personally entered the game, using himself as bait. His defeat was not unjust.

But Higashino Shuichi simply came to Aizen's side, looked up at the sky, where a Shinigami excitedly poked his head out.

He is the vice-captain of the 12th Division, Yujima Osh.

At this moment, he was very happy because he had surpassed Kisaragi Shusuke. In this scheme of Shuichi, he appeared as the absolute core, and even Kisaragi Shusuke could only serve as his assistant!
Furthermore, judging from the current results, he made no mistakes! He also did not hold Xiuyi back anymore, but completed his task perfectly!
Surely after today, my status in the hearts of Xiu Yi people will be much higher than Yue Xiu's, right?

"Do you see him? His name is Yujima Osh. Although he is the vice-captain of the 12th Division, he rarely shows his true abilities to outsiders because of my special instructions. Even you, Lord Aizen, only knew that his Zanpakuto's Shikai ability was to manipulate space, right?"

"Higashino Shuichi said leisurely."

Across from him, Kisaragi Shusuke stared wide-eyed, and in the sky, Yujima Oshu's small eyes also revealed great confusion.

Aizen-sama
This seemed to be the first time they had ever heard Hideaki use such a title to refer to another Grim Reaper, especially since this Grim Reaper had seemed to be full of murderous intent towards them just a moment ago.

However, it seems that Shuichi Higashino does not intend to explain these things to Shusuke Kisaragi and Ousho Yushima right now, but instead focuses on answering Aizen's questions.

"What's causing my hallucinations is his Zanpakuto ability, right?"

Aizen, seeing Kisaragi Shusuke's astonished expression, slowly sat up from the ground and began to swagger over to heal his injuries using the Hogyoku on his body.

"Yes, Osh's Zanpakuto ability can not only create a space, but also absorb the spiritual pressure of all the creatures in the space for his own use. Furthermore, he can record the abilities used by those creatures in the space and then use them in the same space."

Unless Higashino Shuichi intends to kill Aizen here, Aizen will find out about this information sooner or later, given his abilities. After all, the Great Spirit Book Corridor is Aizen's backyard.

Therefore, Higashino Shuichi had no intention of hiding it.

"I see. That's why you had to involve Kisaragi Shusuke and put on this show with me. Otherwise, if it were just the two of us, I wouldn't be able to use Kyoka Suigetsu, and your Yushima Osh wouldn't be able to record my ability at all."

Aizen is still Aizen after all. He instantly deduced the true purpose of Higashino's plan from just a little bit of information revealed by Higashino.

And just as he had previously concluded, all of Higashino Shuichi's actions were driven by a strong purpose.

There are almost no useless moves.

Higashino Shuichi would even deliberately design a play within a play, just to allow himself to analyze a flawed conclusion through his own judgment, so that he would believe it wholeheartedly on the wrong path until he ultimately met his end in complete ignorance.
Aizen firmly believed that in the entire Soul Society, only Kisuke Urahara could barely be considered his opponent, while Shuichi Higashino was just a Shinigami with some fighting skills, belonging to the level of someone who was neither worth keeping nor worth keeping.

But Aizen knew that after today, Higashino Shuichi's place in his heart would be different.

Because he truly has the ability to kill himself.

Even now, he has only created this special opportunity, which is likely to be the only one, by combining the strength of three people and exploiting an information gap with himself.

But who can guarantee that Higashino Shuichi won't find a similar opportunity a second time?
"As for the means by which you will ultimately defeat Lord Aizen?"

With his hands in his pockets, Higashino Shuichi finally turned his gaze to Aizen to the side.

The latter stood up, returned the smile with a level gaze, and
"I know, it's your Resurrection Jutsu ability."

For your Resurrection ability to be successfully activated, there is one extremely demanding condition: you must not cause any harm to the target of your ability before that rule is met.

This is an almost impossible condition for you and me, who fully understand your ability and are in a one-on-one situation.

Therefore, you must bring in a third party to help you share the pressure, but once you bring in a third party, you will inevitably face the risk of experiencing something that is merely a mirage.

Higashino nodded slightly.
“I know very well that after being affected by Kyoka Suigetsu, I can no longer distinguish who is the real Aizen-sama and who is the real Shusuke. As the actual owner of Kyoka Suigetsu, you, Aizen-sama, have the ability to freely switch identities at any point in the battle.”

Therefore, I need a reason, an excuse, a chance to convince you, Lord Aizen, that I have been deceived by your illusion, so that at least until you realize what's happening, you won't easily switch identities again.

"So this is why you asked me to use my Bankai ability on Captain Aizen, Shuichi?"
Your goal is to make Captain Aizen believe that we firmly believe my Bankai ability has been dulled, and that this can seal away Captain Aizen's Kyoka Suigetsu?

Kisaragi Shusuke looked at Higashino Shuichi with a somewhat bitter expression. Well, back then, he genuinely believed his Bankai ability could seal Aizen's Zanpakuto power.
However, Kisaragi Shusuke has now realized that the relationship between Aizen Sousuke, the captain of the Fifth Division, and Shuichi is quite unusual. At least, their relationship is definitely more than just that of ordinary friends.

And judging from the way they address each other, could it be that the relationship between Captain Aizen and Lord Shuichi is just like the relationship between Shuichi and himself?

Wouldn't that be like the flood washing away the Dragon King's temple?!
"You did it, Shuichi~"

Aizen pulled out a pair of glasses from somewhere that were exactly the same as the ones he had lost in the battle, put them back on his nose, and said in a low voice.

Higashino Shuichi smiled slightly, did not respond, and continued speaking.

"The next question is to know when you, Lord Aizen, launched the Kyoka Suigetsu attack on us."

However, to call it a problem is not really a problem.

"Because that Grim Reaper named Yujima Osh can easily know this. As long as he discovers that my Mirror Flower Water Moon has been recorded, it means that I have used it."

However, this method can only be used once, so Shuichi, you must make sure that I will only switch identities with Kisaragi Shusuke once, otherwise, you will face a choice between two options in the end.

Gambling has never been something you, Shuichi, enjoy doing.

This time, Aizen interrupted Higashino Shuichi's narration and joined in the recap.

In fact, he was also very curious about Higashino Shuichi's complete plan.

Throughout the entire battle, Aizen was very clear that he had not held back at all; in fact, he had raised his alert level to the highest level.

Even so, he still fell step by step into the trap meticulously woven by Higashino Shuichi.

Therefore, at this moment, Aizen actually wanted to understand the whole picture more than anyone else present.

Furthermore, the narrator should ideally be himself.

This way, his failure in front of his subordinates wouldn't seem so shameful.

At least he salvaged some face for himself afterward, didn't he?
Higashino Shuichi nodded to Aizen, acknowledging Aizen's guess, but before he could speak, Aizen preempted him.
"Then, after I used the Mirror Flower Water Moon to switch identities with Kisaragi Shusuke, you had Yujima Oshu use the recorded Mirror Flower Water Moon to control my five senses, making you and Kisaragi Shusuke switch identities in my eyes."

In this way, the battle on the surface appears to be a joint effort between you and Kisaragi Shusuke against me, with you as the main attacker and Kisaragi Shusuke as the support.

But actually, I was the one watching from behind, Shuichi and Kisaragi Shusuke putting on a show for me!

Ha ha
Since you and Kisaragi Shusuke are only putting on an act, of course you won't cause me any harm. Moreover, this period of time is long enough for your Resurrección ability to completely complete the preliminary preparations.

Then, Shuichi, all you need to do is pretend to be under a similar paralysis effect as before, because at this moment, you are the real Kisaragi Shusuke I saw back then, which is also the self I thought you, Higashino Shuichi, were.
This level of performance is far too easy for you.

Furthermore, she was later stabbed in the heart by Kisaragi Shusuke and then cut in half at the waist by me. Such injuries would be absolutely fatal to most Shinigami.

But for you, Shuichi, who possesses the ability to regenerate infinitely, it's probably just a tickle.

Aizen had figured everything out, but the more he thought about it, the more he realized that he couldn't understand Higashino Shuichi anymore.

From the moment Higashino Shuichi used his Cero to leave, to his return, and until the moment he completely defeated himself, it can be said that Higashino Shuichi could not afford to make a single mistake. If he had made a single mistake, or if an unexpected event had occurred, the outcome might have been completely different.

However, upon careful consideration, Aizen realized that, unless there were problems with the execution by the few people on Higashino Shuichi's side, he didn't think there was anything wrong with his thoughts and decisions at the time, even now.

And this is precisely the most terrifying part of it all.

It can be said that Higashino Shuichi planned out every step and every idea in advance.

Aizen couldn't help but wonder if, had he had a different idea or made a different response, Higashino Shuichi would have come up with a completely different solution.

Unfortunately, Aizen knew he might never get an answer to this question.

Because he understands Shuichi Higashino, just as Shuichi Higashino probably understands him in the same way.

"Even so, it's extremely difficult for me to fight against Lord Aizen."

Higashino Shuichi sighed and gazed into the distance with a half-smile.

"Then, Lord Aizen, may I leave now?"

If it were simply a matter of leaving, Higashino Hideaki didn't need to be so formal.

Aizen glanced at Kisaragi Shusuke opposite him, and at Yushima Osh in the sky who had shrunk back into another space. He roughly guessed the other meaning behind Higashino Shuichi's words.

This is not a simple departure.

So that's why you came back and insisted on fighting me?
Aizen pushed up his black-rimmed glasses with his right hand, then turned around, his back to Higashino Shuichi, and gazed into the distance in a direction completely opposite to Higashino Shuichi's.
"Go ahead, you've defeated me, haven't you?"

The space receded, revealing the previously dilapidated maggot nest outside. Aizen released his spiritual senses and found that Higashino Shuichi and Kisaragi Shusuke were no longer around.

"This is getting more and more interesting!"

Aizen smiled and walked towards the First Division's barracks.

It's time to go and apologize!

(End of this chapter)