After retiring from the Zero Division, Aizen came to study

"You are not as good as me!"

If such words were spoken by others, Mole City Kenpachi would definitely look down upon him and sneer at him.

However, for some reason, when such words came out of Xian Ye's mouth, Mole City Kenpachi couldn't help but believe them.

He I don’t know why I have the power to believe.

Maybe it’s the strong self-confidence contained in Xianye

’s words. As for Aizen, he believed Xianye’s words immediately.

For the master who knows many secrets, this One thing, after so many years of teaching, he has long accepted

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

Mole City Kenpachi asked the biggest question in his heart.

If the God of Death has no ability, then that's it.

But the God of Death has enough ability, which is hard to understand.

"Of course it’s all about balance!"

Mole City Kenpachi raised his eyebrows.

He was obviously seriously injured, but at this moment, he ignored the injuries and just wanted to find out the reason from Xianye.

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

He really wanted to know about this question.

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

It was highlighted that the responsibilities of the God of Death are In order to maintain the balance between souls.

Therefore, the Shinigami needs to fight against the hollows that invade 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 other For many years, the Soul Society will also organize an expeditionary force to go to Hueco Mundo for crusade.

But it is only one army, and they do not choose to go out in full force to deal with Hueco Mundo.

Aizen is a curious person, of course. He would also guess the reason.

Unfortunately, he couldn't figure it out.

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

"Before mentioning the issue of balance between souls, we need to clarify one thing first."Xian Ye didn't talk about balance directly, but brought up another thing. Fortunately, he didn't talk too much about it and said directly,"That is, about the composition of the world!"

"We all know that this world is divided into three parts, namely the world of Qizi, 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 is 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 humans die in the present world, they will fall into one of these two worlds based on their desires and obsessions during life."

"Among them, souls with deep obsessions will be reorganized in Hueco Mundo and degenerate into virtual worlds."

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

"The real world is a world of instruments, and there are relatively few souls containing spiritual power, so there are very few Daxu invading the real world."

"This is not the case in Soul Society. Soul Society is the place where souls live. Driven by desire, even if the God of Death exists here, Hollows will still invade here every once in a while."

"The duty of the God of Death is to protect the present world and the Soul Society, and to eliminate the Hollows that invade these two worlds."

"Under normal circumstances, the God of Death will not pay attention to the Hollows in Hueco Mundo. Only when a situation arises will he organize an expeditionary force to go to the Great Hollow Forest in Hueco Mundo to purify the Great Hollows in Hueco Mundo."

"what's the situation?"Aizen is already a qualified admirer.

After Xianye said these words, he immediately took over the conversation and asked.

Xianye glanced at Aizen with satisfaction and replied:"That is, Hueco Mundo When there are too many voids in the middle"

"Hollows live by devouring each other. When multiple ordinary Hollows devour each other, they will evolve into Big Hollows. Big Hollows are divided into three levels: Kilian, Achukas, and Vastod. Their evolution is different from that of ordinary Hollows. The method is the same, just by swallowing"

"When there are too many voids, the number of great voids will naturally increase."

"They also make a living by devouring spirit sons. The spirit sons needed by Daxu are far more than those of ordinary voids."

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

"In order to avoid such a result, we will send the God of Death to go to Hueco Mundo first and kill the group of Hollows, so that the number of Hollows will be reduced and the souls will return to the land of Hueco Mundo. Only in this way can a new generation be formed. A virtuous cycle to maintain the stability of Hueco Mundo"

"As for why? 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 instrument 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."

Speaking of this, both Mole City Kenpachi and Aizen understood what it meant.

The world is a scale.

If the concentration of souls in Hueco Mundo is too low, the balance will tilt towards Soul Society, and the corpse will The Soul World will become heavy and the world will no longer be stable. On the contrary, if the concentration of Hueco Mundo Spirits is too high, Hueco Mundo will become heavy and the result will be the same.

Compared to the world itself, the souls living in it are An accessory of the spirit son.

If all the hollows are destroyed, there will only be one result.

That is, the spirit sons after the death of all the hollows will be integrated into the Hueco Mundo itself. If the concentration of the spiritual sons of the Hueco Mundo is too high, it will become heavy.

Think about it. To restore balance to the scales, we can only kill an equal number of souls in Soul Society and let the souls of these souls merge into the earth of Soul Society. As expected, what Xian Ye said next verified the Mole City Sword Hachi's guess.

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

Mole City Kenpachi finally understood why the God of Death allowed Hueco Mundo to exist.

It's not that the God of Death 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. The

God of Death absorbs the souls and strengthens his own spiritual power, which will make the Soul Society's souls The concentration is too low, and the world itself has a low spirit son concentration.

If a large number of Hollows are removed, it will make Hueco Mundo, which has a higher spirit son concentration than Soul Society, become heavier and further break the balance.

Therefore, Hollows must exist.But the quantity must also be a certain amount, not too much, not too little.