Bleach: The Invincible Slacker from Rukongai

Because the kido seal that erupted from inside his body was extremely difficult to deal with. For a moment, he was unable to break free from its binding power. This seal seemed to be rooted deep within his very soul, making it nearly impossible to remove through conventional means.

Urahara Kisuke looked at the embarrassed Aizen with a mixture of satisfaction and melancholy, then explained: "Yes, it is indeed me. I told you, Aizen, you've become careless. If it were you before, you would never have allowed me to touch you twice."

"It was at that moment, when you were most careless and least prepared, that I used the cover of other kido spells to inject this particular kido into your body. This is the Sealed Kido, which is specially designed to target you and the power of the Hogyoku."

His voice grew more serious as he continued: "Because it is rooted in your soul, it cannot be eliminated through normal means. When you merged with the Hogyoku, I knew it was impossible for you to simply fall asleep. Because the Hogyoku will always protect you. In this case, I could only use the kido method that can seal even the Hogyoku itself."

His research on the Hogyoku over the years had not been in vain. This kido seal was very specifically targeted. Only by cutting off the connection with the Hogyoku could Aizen be properly sealed. Of course, the information provided by Squad Zero had also played an important role in developing this technique.

At this time, Aizen had not yet realized the true seriousness of the situation. Instead, he raised his half-disappeared Zanpakuto defiantly and said: "Sealing the Hogyoku? What a shameless statement! You can see that I am still evolving toward a higher level of existence."

"The disappearance of the Zanpakuto is the best proof of this evolution. How could a kido of this level possibly seal me and the Hogyoku?"

As soon as he finished speaking, the Zanpakuto in his hand and the white armor covering his body shattered completely, revealing a body that was undoubtedly that of an ordinary person. The transformation was both sudden and shocking.

Looking at his body that had been restored to that of a regular Shinigami, Aizen was horrified: "What the hell is going on? How is this possible? Could it be that the Hogyoku was really..."

He couldn't believe what he was seeing with his own eyes. The Hogyoku could actually be sealed? He had clearly evolved into a god-like being, so why was he being restricted everywhere now?

"That should be the will of the Hogyoku itself, not entirely the effect of my seal." Urahara Kisuke explained with a serious expression, his tone carrying a weight of understanding that came from years of research.

"The prerequisite for this seal to be fully effective is that you are not strong enough and the Hogyoku stops providing you with power." Having said this, he turned to look at the exhausted Kurosaki Ichigo with genuine respect.

"Thanks to Mr. Kurosaki's help, this seal was able to be activated. It was he who fought with you until now, and finally pushed you into a desperate situation. Only then could the kido seal take effect properly."

His next words carried a crushing finality: "This means that the Hogyoku does not recognize you as its true owner. Aizen, you were rejected by the Hogyoku."

Kisuke Urahara was not particularly happy about sealing what could be considered a "god" with his own hands. Because to some extent, Aizen was a fellow researcher and practitioner. The path chosen by his former colleague was one that he himself had walked through with experience and understanding.

For various reasons, he had given up this path of evolution long ago. Now, he was sealing the Hogyoku along with Aizen. This was equivalent to burying his own greatest achievement with his own hands, which was not something worth being happy about.

Moreover, he genuinely felt sorry for Aizen. If his opponent had chosen another path, things would not have ended up like this. Ichigo Kurosaki wouldn't have had to pay such a heavy price either.

"How is this possible?" Aizen roared with unwillingness and rage: "Urahara... Urahara Kisuke, I despise you! Given this level of wisdom and understanding, why don't you take action? Why would you willingly submit to serving something like that?"

As he spoke, the spiritual flame on his chest penetrated through his body and condensed into an energy entity like a cross behind him. A dozen red light crosses pressed down on Aizen's body, making it extremely heavy and difficult to move.

The kido seal had begun to bind his soul directly, preventing him from exerting his full power. This made him feel even more angry and unwilling to accept his fate.

Hearing this accusation, Urahara Kisuke finally confirmed his long-held suspicions: "The thing you are talking about, are you referring to the Soul King? So that's it, you really did see him. This is really..."

He paused, collecting his thoughts before continuing with conviction: "But the Soul King must exist. The Soul King is like a wedge holding everything together. Once the wedge is lost, the world will fall apart and all order will be gone. That's simply what the world is like!"

Many people sympathized with the Soul King and wanted to do something to help. But Aizen had just wanted to realize his own ambition through replacing him. The trouble was, Aizen might not be the only one targeting the Soul King in the future.

As his soul became increasingly bound, Aizen's energy declined further. The energy entity within his body materialized even more, forming a more tenacious, more powerful, and more binding spiritual pressure entity.

The powerful kido entity began to wrap around Aizen like living chains, sealing him more completely with each passing moment. While Aizen continued to tear desperately at the spiritual pressure entities that were entangling him, he roared loudly once more:

"You have the mindset of a loser! The winner should always think about the way the world exists and explore ways to solve the problem. Instead of being so depraved as to simply assume that the world is the way it is and then succumb to it like a coward!"

At this point, the kido seal fully exerted its overwhelming power and transformed into a huge physical cross, completely sealing and wrapping Aizen within its binding structure. The cross glowed with an ominous red light as it encased the former captain.

Seeing Aizen finally disappear within the seal, both Kurosaki Ichigo and Urahara Kisuke fell into a contemplative silence. The battle was over, but the weight of what had transpired hung heavy in the air between them.