Bleach: After Retiring From Zero Division, Aizen Came To Study

"You are not as good as me!"

If such words were spoken by others, Sōya Kenpachi would definitely look down upon them and sneer at them.

However, for some reason, when such words came out of Arima's mouth, Sōya Kenpachi couldn't help but believe it.

He didn't know why he had the power to believe.

Maybe it's the strong confidence contained in Arima's words.

Aizen believed Arima's words immediately.

The master knew many secrets, and after so many years of teaching, he had long accepted it.

"Since you said that Shinigami has the ability to destroy Hueco Mundo, then why does Shinigami still allow the existence of Hollows instead of eradicating all Hollows in Hueco Mundo?"

Sōya Kenpachi asked the biggest question in his heart.

If Shinigami doesn't have the ability, that's it.

But it's hard to understand for him, that if the Shinigamis have enough abilities. Why aren't they doing anything?

"The world is all about balance!"

Sōya Kenpachi raised his eyebrows.

It was obvious that he was seriously injured, but at this moment, he ignored his injuries and just wanted to find out the reason from Arima.

Aizen also asked curiously: "Master, what exactly is the balance between worlds?"

He really wanted to know about this question.

After being admitted to the Spiritual Arts Academy, one of the courses he took was about the responsibilities of Shinigami.

It is highlighted that Shinigami's duty is to maintain the balance between worlds and souls.

Therefore, Shinigami needs to fight against the Hollows invading Soul Society and the real world, and purify them.

However, there is no mention of how to deal with the Hollows in Hueco Mundo.

Of course, every few years, Soul Society will organize an expedition to Hueco Mundo for crusade.

But it was only one troop, and they did not choose to go out in full force, and all went to Hueco Mundo to deal with the Hollows.

Aizen is a curious person, and of course he will guess the reason.

Unfortunately, he couldn't figure it out.

Even before this, his master had already told some knowledge about the world as a scale, but it was not detailed. If possible, he would like his master to explain it in more detail.

"Before we mention the issue of balance between souls, we need to clarify one thing first." Arima did not talk about balance directly, but mentioned another thing. Fortunately, he did not make too much of it and said directly, "That's about the structure of the world!"

"We all know that this world is divided into three parts, namely the world of living, Hueco Mundo and Soul Society, and outside these three worlds, there is hell."

"Hell is the destination of the most evil souls, but of course that's not the truth."

"But what we are talking about here has nothing to do with hell, so I won't say more."

"The three worlds of the present world, Soul Society, and Hueco Mundo are like a triangle. After people die in the present world, they will fall into one of these two worlds based on their desires and obsessions during their lifetime."

"Among them, the souls with deep obsessions will be reorganized in Hueco Mundo and become hollow."

"Because of the Hollows hole, they will have an instinctive desire to devour the same kind, in order to fill the hole in their heart. The soul containing spiritual power is the most delicious food for them."

"The present world is a world of living beings, and there are relatively few souls containing spiritual power, so there are very few Hollows invading the present world."

"Soul Society is not the case. Soul Society is the place where the souls lives. Driven by desire, even if there are Shinigamis here, there will still be hollows that invade every once in a while."

"The Shinigami's duty is to protect the present world and Soul Society, and to eliminate the Hollows that invade these two worlds."

"Under normal circumstances, Shinigamis will not pay attention to the hollows in Hueco Mundo. Only when a situation arises, will it organize an expeditionary force to go to the Menos Grande forest of Hueco Mundo to conduct an attack on the Menos Grande of Hueco Mundo. But there can be a big Problem..."

"What's going on?" Aizen is already a qualified admirer.

After Arima said these words, he immediately picked up the topic and asked.

Arima glanced at Aizen with satisfaction and replied: "That is, when there are too many Hollows in Hueco Mundo."

"Hollows live by devouring. When multiple ordinary Hollows devour each other, they will evolve into Menos Grande. Menos Grande is divided into three levels, Gillian, Adjuchas, and Vasto Lorde. Their evolution is the same as that of ordinary Hollows, which is to rely on devouring."

"When there are too many voids, Menos Grande will naturally increase in number."

"Similarly, Menos Grande lives by devouring reishi. Menos Grande needs far more reishi than ordinary Hollows."

"When the concentration of souls in Hueco Mundo decreases and is no longer suitable for Hollows survival, they will naturally turn their attention to Soul Society, which is also a world of souls. This is not a good thing."

"In order to avoid such a result, we will send Shinigami to go to Hueco Mundo first, kill the Hollow group, reduce the number of Hollows, and let the reishi return to the land of Hueco Mundo. Only in this way can we form a new virtuous cycle maintaining the stability of Hueco Mundo."

"As for why we do this? It comes down to the world itself."

"This world is not born like this, but created by man. Its existence is like a triangle and a scale."

"The present world is the lever, and the two spirit worlds are the weights at both ends of the scale. Under normal circumstances, the two worlds are in balance. If the balance of one of the worlds is broken, it will indirectly affect the other two worlds."

At this point, both Kenpachi and Aizen understood the meaning.

The world is a balance.

If the concentration of souls in Hueco Mundo is too low, the balance will tilt towards Soul Society, and Soul Society will become heavy, and the world will no longer be stable.

On the contrary, if the concentration of souls in Hueco Mundo is too high, Hueco Mundo will become Heavy, the result is the same.

Compared to the world itself, the souls living in it are vessels to reishi.

If all Hollows are eliminated, there will only be one result.

That is, all the souls after death are integrated into Hueco Mundo itself. If the concentration of Hueco Mundo souls is too high and it will become heavy.

If you want to restore the balance of the scales, you can only kill an equal number of souls in Soul Society and let the souls of these souls merge into the Soul Society.

Sure enough, what Arima said next confirmed Sōya Kenpachi's conjecture.

As for Aizen, Arima told him a lot of relevant knowledge earlier, but the knowledge was not as detailed as this time.

Sōya Kenpachi finally understood why Shinigami allowed Hueco Mundo to exist.

It's not that Shinigami doesn't want to get rid of all the Hollows, but because of the structure of the world itself, they can only allow the Hollows to exist.

Shinigami absorbs souls and strengthens its own spiritual power, which will make the concentration of souls in Soul Society too low and the concentration of souls in the world itself too low.

If a large amount of Hollows are removed, Hueco Mundo, which already has a higher soul concentration than Soul Society, will become heavier, further breaking the balance.

Therefore, Hollows must exist.

But its quantity must also be a certain amount, not too much, not too little.

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