Bleach: The Strongest Kenpachi Starting from Signing In

"After data collection and investigation, it was found that the necessary condition for becoming a wedge in the three realms is to possess the powers of a Shinigami, a Hollow, a Quincy, and a Fullbringer at the same time."

With dark circles under his eyes, Kisuke Urahara typed away on the keyboard, describing his recent research.

"To be more specific, the so-called Fullbring can be identified as a fragment of the Spirit King, that is, the power of the Spirit King."

"We have all four forces now; the problem is how to coordinate them together."

"I have proposed three solutions to this problem."

As soon as the Enter key was pressed, a text description that even Ru Yueming could understand appeared on the screen.

"The first step is to hollow out the Shinigami who possesses a fragment of the Soul King, and then use the fragment as an anchor point to inject Quincy power."

"The second option is similar, except that the test subjects are changed to broken faces, such as Ulquiorra Cifer, who is a very good test subject."

"As for the third one..."

Kisuke Urahara pushed up his glasses, which he seemed to have snatched from somewhere, and said seriously:

"Based on the Sleep Project, conduct new research and development to create a similar existence."

“I obtained some information in the Great Spiritual Book Corridor. In fact, the Tsunayo family had already begun similar research a long time ago.”

"Using the Soul King fragment as the core, and the corpses of Quincy, Shinigami, Hollows, and humans as materials, a new Soul King will be created."

Hearing this, Ru Yueming, who was slacking off nearby, raised his hand and gestured:

"Professor Pu, I have a question."

"If something is created in this way, could something similar to Yhwach be born?"

Urahara Kisuke ignored the way someone addressed him, stroked his chin, and said thoughtfully:

"Probably not."

"Yhwach's appearance is, in a sense, related to the Soul King."

"What we are studying now is just the wedge of the Three Realms. We only need to be able to stabilize the Three Realms. It is not necessary to have strong combat power."

Aizen slowly spoke up from the side, adding:

"Ming, there's no need to feel guilty."

"As long as it doesn't develop consciousness, it's just a perfectly normal tool."

"And this is something that can be easily done with our technology."

Hearing this, Ru Yueming felt relieved and stopped worrying.

The one who truly understands me is Soyou.

On the other side, Mayuri Kurotsuchi frowned, puzzled, and asked:

"The key lies in the core that coordinates all these forces."

“A single fragment of the Spirit King might not be enough to withstand it, unless we possess a fragment of the Spirit King of similar caliber to Gerald’s.”

Aizen stepped forward and tapped a few times on the keyboard. The metal wall in front of him immediately began to rotate and split, and a huge container slowly moved out.

He calmly gazed at the contents of the container, his serene voice echoing in the laboratory:

Why get hung up on the Spirit King fragments?

"We clearly have better materials..."

The container was filled with a viscous liquid, and a brain floated silently within it, its skin folds and undulating as if it were still alive...

…………

The creation of the backup Soul King was entrusted to Kisuke Urahara and Mayuri Kurotsuchi.

Although the two looked down on each other, they had developed a good understanding after so many years of matchmaking.

During the experimental research, Mayuri Kurotsuchi often only needed to give Kisuke Urahara a glance to know which step to take.

In addition, given their extensive experience, they could easily complete the task once the basic plan was already in place.

Szayelaporro, having missed the opportunity to study Gerald last time, was not about to let this chance to create the Spirit King slip by easily.

Therefore, he stayed by their side and served as their assistant in the experiment.

As for Aizen and Akira, they had more important things to do.

In another laboratory.

As Ru Yueming looked at the several black butterflies fluttering within the sealed ghost path, a strange expression appeared on her face.

"Sousuke, I am now the Captain-Commander-in-Chief, and I have a lot of important matters to attend to every day."

"I don't have time to watch butterflies with you here."

Aizen: "?"

I thought this guy would tone it down a bit after becoming the captain, but I didn't expect him to go even crazier.

"This is a Hell Butterfly."

Aizen explained irritably, "These are essential items for Shinigami when they travel to the Dangai. Without their guidance, they might get lost in the Dangai."

Ruyue Ming nodded.

Although I haven't used this thing much, I've seen it used by the First Division for communication. Besides guiding the way, the Hell Butterfly also contains a small Heavenly Sky Net for communication.

However, this method of communication was abandoned after a new generation of communication machines was invented.

"Have you ever thought about this...?"

Aizen changed the subject, asking seriously, "Why does the butterfly that guides the Shinigami have the word 'hell' in its name?"

"Furthermore, why is the True Central Prison, which imprisons the most heinous criminals, divided into eight hells?"

Seeing the bewildered look on someone's face, Aizen knew that he had wasted his breath.

"In fact, hell is always around us."

He let out a helpless sigh, "Based on my research these past few days, I've discovered that the Hell Butterflies may have existed even longer than the Soul Society."

Ru Yueming seemed lost in thought.

"We previously thought that the Hell Butterfly was a means for Hell to monitor the Three Realms, but that's not the case."

Aizen paused, then continued:

"Hell Butterflies are a special species that have been transformed by being tainted by the aura of hell."

"They possess a certain ability to travel between worlds."

"It has evolved through the exploration and transformation of generations of Death Gods that it has become what it is today."

“We can use it to develop methods to deal with hell.”

As the moon shone, she let out the same sigh, saying helplessly:

"I understand."

"It's simply that Yhbach's problem has been solved, and now it's Hell's turn."

"But, Sousuke, haven't you overlooked something?"

Aizen frowned, puzzled.

"Actually, you don't need to think about this so much."

Ru Yueming chuckled confidently and said, "Because..."

"I am now invincible in the world!"

"Even if that scoundrel Ling Wang were to be resurrected, it's hard to say who would emerge victorious!"

Looking at the confident smile on someone's face, Aizen recalled the Soul King's words, his tightly furrowed brows gradually relaxed, and finally he slowly nodded.

…………

A month has passed since Ruyue Ming took office as the captain.

With nothing to do after retirement, Yamamoto suddenly had a whimsical idea: to go and see how his wayward apprentice was doing at work.

With Kisuke Urahara's assistance, there shouldn't be any major problems.

The old man, leaning on his cane, skillfully opened the door to the captain's office.

Upon seeing the scene before him, Yamamoto's breath hitched.

The documents were piled up like mountains.

But the person was nowhere to be found.

Before he could even get angry, the old man began searching through the various rooms of the First Division.

After searching in vain, he finally remembered that he had another method: the Ghostly Path to Find People.

"You damned brat, it must be because you've been spending too much time with that kid that my thinking has become a bit sluggish!"

Yamamoto cursed angrily and then used the Fifty-Eight Binding Technique to slap the toe and chase the sparrow.

The immense spiritual pressure spread out from its center, quickly covering the entire Seireitei.

Wait, where are they?

In the vast Seireitei, it was impossible to find Ruyueming's spiritual pressure.

The newly appointed commander-in-chief has disappeared?

Yamamoto felt his blood pressure spike again.

Just then, Kisuke Urahara, who had sensed Yamamoto's spiritual pressure, came out of the laboratory and ran up to him.

"Yamamoto-sama."

Kisuke Urahara grinned and said, "Before the captain left, he instructed me to ask you to take care of the accumulated official documents in the team if you come."

Yamamoto: "?"

I'm already retired, why should I help you with your paperwork?

Before anyone could ask a question, Kisuke Urahara continued:

"The development of the backup Three Realms Wedge is at a critical moment, and I cannot spare the time for it at the moment."