After retiring from the Zero Division, Aizen came to study

Since we are going to study the secrets between souls, we naturally cannot do it behind closed doors and rely entirely on our own imagination.

Aizen is a practical person. He used the mission as an excuse to come to Rukongai and through close observation, he could feel the difference between the whole soul and the Shinigami.

Although the whole soul is also a kind of soul, it has no spiritual power.

They died as humans in the world of artifacts and came to this world of spirit children. If they lived another life like ordinary humans in this world, and their longevity in this life was cut off again, they would completely turn into spirit children and dissipate in the world. between.

There is a cycle of souls between heaven and earth. In the long cycle, the souls are reorganized and new souls are born. If you are lucky, similar flowers may not appear, and souls that are exactly the same as before may appear.

But this is just a possibility, and the probability of it happening is too small.

Unlike the whole soul, the god of death, or the soul with the qualifications of the god of death, is inhabited by spiritual power. Compared with the vast world of corpses, their existence is unique.

This is not a joke.

It is the result of Soul Society's statistics.

Counting the entire Gotei 13 and even all the students of the Shino Spiritual Arts Academy, there are only more than 10,000 Shinigami, no more than 20,000. Assuming that there are many hidden gems among them, such as those who have never chosen to become Shinigami, It's about the souls still living in Rukongai, such as members of the nobility. There are only tens of thousands of souls with the qualifications of a Shinigami in the entire world.

What about whole soul?

After all living beings in this world die, they will fall into the Soul Society.

Assume that there are billions of human beings in the entire world, and tens of millions of people die every year. At the same time, in Soul Society, a similar number of souls will enter a new reincarnation.

The entire eighty districts of Rukongai have at least several hundred million souls, not to mention billions.

Therefore, it is not surprising that the existence of the God of Death is unique among thousands.

Compared to this world, the God of Death is more like an alien.

At the same time, it is not surprising that they would have such a high casualty rate.

After all, they protect the entire world with such a small number.

In the original book, a city with hundreds of thousands or millions of people was only guarded by one god of death.

It's not that Soul Society doesn't want to send more Shinigami to protect the world, but the number of Shinigami is really limited.

"What is the reason that leads to such a difference?"

"Death, why Death?"

"What is the principle behind the soul falling into Hueco Mundo and becoming virtual?"

"It is clear that in Soul Society, there is no soul with any spiritual power. Why did it become a Hollow after accidentally falling into Hueco Mundo?"

"What is the reason for becoming virtual?"

In Rukongai, Aizen secretly observed the souls and found that they were actually similar to humans. He couldn't figure out the difference between the souls for the time being. It can only be said that Aizen at this time still has some Conscience.

In order to achieve his goals, he did not wantonly harm souls, trample the laws of Soul Society, and violate many prohibitions.

But his curiosity about everything is always there.

In ordinary times, except for Seirei In addition to secretly conducting his own research in the court, Aizen likes to come to Rukongai and the open space to test some of his ideas when he has nothing to do.

Such as the combination of Kidō and Hakuda, Kidō Combined with cutting skills.

He has studied the concepts proposed by these two masters and gained some results.

Recently, due to the slow progress in these things to improve his strength, he turned to study the concepts taught by his masters. The mystery between the spirit children.

Rukongai is very big.

Even if Aizen, as a Shinigami, uses Shunpo, it will take a long time to pass through Rukongai.

The area he chose is the closest to Rukongai. The last few districts.

In these districts, due to the lack of resources, armed fighting often breaks out.

Basically every few days, conflicts between hostile forces will occur over water sources.

This is not just playing house. It’s a game, but a real conflict with fatalities.

The winner will leave proudly with the water source.

The loser will not even bother to restrain the body of the dead person.

After all, they are all souls. If they don’t restrain themselves, In a short time, the corpse itself will turn into a spirit and dissipate completely. There is no need to worry about rotting or polluting the environment.

Seireitei will not care about such a fight.

Although the Shinigami is committed to maintaining the relationship between souls, balance, but as long as there is no large-scale soul disappearance or death event, they will not care whether ordinary souls die naturally or due to fighting.

Only the appearance of Xu is different.

Xu makes a living by devouring souls, they After being in a state of hunger for a long time, once they appear in Rukongai, they will keep devouring souls and will not stop.

If they are allowed to continue to rage, sooner or later they will eat up all the souls in Rukongai.

So , whenever a Hollow appears in Soul Society, the God of Death will rush to kill him in time.

Hidden in the dark, Aizen witnessed a fight with weapons in the back area of ​​Rukongai. After the Hollow died, his body began to transform. For Reiko, there was nothing surprising about this process.

At least, after observing during this period, he still didn't understand the mystery.

Aizen felt a little boring and was about to leave.

Suddenly, he felt something A spiritual connection.

That is the spiritual connection of the God of Death.

In this world, any being who has spiritual pressure must have a spiritual connection.

For a God of Death, he can even use the method of the ghost to bring back a long time ago. He grasped the spiritual traces left by the other party, and then traced the other party's whereabouts.

Apart from himself, there was also a Shinigami who appeared in this Rukongai.

Aizen was very curious.

He passed by this Rukongai. After long-term observation, I am already very familiar with it. It can be said that there is nothing surprising.

Why does the other party appear here?

When Aizen starts to be curious about something, the nature of the matter completely changes.

Aizen followed his perception of spiritual connections and soon came near the Shinigami who appeared in Rukongai.

The sound of screams reached his ears.

The one who screamed was an ordinary soul from Rukongai. During the process of screaming, Aizen could clearly feel that the opponent who originally had no spiritual power suddenly released spiritual pressure..

Unfortunately, this scene did not last long. The opponent seemed unable to bear the spiritual pressure. Soon, his body exploded with a bang and was completely annihilated.

Then, Aizen's eyes fell on the god of death who was torturing his entire soul.

On the other party's body, he was wearing a white haori.

On Haori's back, there are two large black words

"eleven!"

Captain of the 11th Division, Mole City Kenpachi?

Aizen's pupils shrank slightly, he was very shocked.