After the previous Aizen defection incident, in order to concentrate more forces for a decisive battle against him, the Hueco Mundo Expeditionary Force was recalled for a time, and the captain of the Expeditionary Force, Shusuke, was able to return to the Soul Society after that, and became the captain of Fifth Division.
It was later proved that this move was correct.
At that time, no one thought that Aizen had been operating in Hueco Mundo for so many years, and even secretly turned so many Menos Grande into arrancars.
If they had not recalled the Expeditionary Force at that time, they would have been without a doubt, killed by Aizen in retaliation of them performing their attacks in Hueco Mundo.
Right now, Yamamoto's proposal to re-organize the Hueco Mundo Expeditionary Force was not a sudden decision, but a decision made after some deliberation.
The Hueco Mundo Expeditionary Force was to be formed now for two reasons.
First, after the war between Hueco Mundo and Soul Society ended, Hueco Mundo side had suffered heavy losses. It should be the right time to crusade against them and eliminate as many forces as possible to prevent Hueco Mundo from recovering.
After all, today's Hueco Mundo was no longer the original Hueco Mundo.
After the Karakura Town battle, the Soul Society had realized that the arrancars of Hueco Mundo have the power to wrestle with the Soul Society's captain-level shinigami, which was something they could not have imagined before.
Although Menos Grande of Vasto-Lorde level had existed in the Hueco Mundo in the past, during the battle between Soul Society and Hueco Mundo in previous years, Soul Society also beheaded Menos Grande of Vasto-Lorde level, such as the dead Seventh Kenpachi, who once accomplished this feat by himself.
So though Vasto-Lordes were said to be very strong, in fact, for the real strong of the Soul Society, that was not the case.
But arrancars are different.
When the Menos Grande of the Vasto-Lorde level turned into arrancars, their strength went one step further. With such strength, even among the captains of the Gotei 13, they could be regarded as strong.
It could be said that the current Hueco Mundo had already brought a strong threat to the Soul Society.
If Hueco Mundo and other arrancars, under the command of some ambitious people, brazenly attack the Soul Society and the world of living, it was possible to break the balance between the Three Realms.
Here, the only thing that could comfort the Soul Society was that Aizen, a bold, capable and ambitious man, had failed and was successfully sealed.
And the second reason for setting up the Hueco Mundo Expeditionary Force to attack Hueco Mundo was because of the traitor Mazuru who, according to them, inherited Aizen's will and fled to the Hueco Mundo.
The spiritual veins underground in Karakura Town have fallen into his hands, and so, the other party had met one of the conditions of creating the Ōken. Although there were still some conditions missing from the creation of real Ōken, the most important thing had already fallen into his hands.
In order to prevent him from successfully creating the Ōken, the Soul Society must take action.
It was inevitable to go to Hueco Mundo to attack Mazuru.
Of course, the prompt establishment of an Expeditionary Force does not mean that the action would be launched immediately. After all, the top combat power of the Soul Society had just gone through the battle of Karakura Town, and all of them were injured. They all need to recuperate for a while.
And the matter of Aizen must be dealt with as soon as possible.
In the next period of time, Yamamoto first imprisoned Aizen in the lowest level of the underground prison, Muken, and then Mayuri installed various instruments on his body to weaken and restrict Aizen in every possible way to ensure that Aizen was kept in check despite being alive.
After there was be no problems with his seal in Muken, they just left Muken in peace.
Then, another matter was placed in front of Yamamoto.
This matter was related to the nobility of the Soul Society.
When Aizen defected, Aizen slaughtered Central 46, and then it took a long time to go through by many nobles, and a new Central 46 was re-elected.
However, not long after this group of talents took office, they were slaughtered again.
Moreover this time, the situation was much more serious than last time.
It's not just that the members of Central 46 were massacred, and even the families behind them encountered the same fate this time.
Most of the residents of Noble Street were almost completely destroyed in an instant.
It could be said that most of the foundation of the Soul Society's nobility had been dug out.
Except for a few big nobles such as Shihouin and Kuchiki, most of the upper and middle nobles were eliminated in this incident.
The small nobles did not suffer much loss, but the small nobles were basically of no use.
There was no need for them to make a show, saying that they were an aristocrat and demand powers and such, after all, in fact these people were the ones who only had the title of aristocrats in name.
In fact, there was not much difference in their status from ordinary civilians.
Many of them even had to attach themselves to those big nobles to maintain their title of aristocrat.
After the Noble Street incident, the first impact was that Central 46 might not be fully assembled.
Their foundations have been dug out, and it was a little difficult to select members of Central 46 from among the remaining upper and middle nobles.
The Kuchiki family and the Shihouin family were fine, but these two families are sparsely populated.
Obviously, it was impossible to rely on them to fill the vacancy of Central 46.
As for those minor nobles, they have never been one of the considerations of Central 46 members.
Although Mazuru left the Soul Society, it had to be said that he really left a problem for the Soul Society.
Therefore, after realizing that Central 46's re-establishment could not be completed in a short period of time, Yamamoto could only shelve the matter temporarily, and then began to think about the Expeditionary Force that was set to crusade against Hueco Mundo.
A lot of information about Hueco Mundo was learned by Unohana through her report, and then passed on to the entire Gotei 13.
The information about all kinds of hollows and other residents in the Las Noches, and even the Hueco Mundo, were quickly learned by many shinigami.
…
Seireitei, on one of the streets, two women suddenly bumped into each other.
"Have you decided yet?"
Rangiku looked at Nanao in front of him and asked.
Regardless of whether Nanao had made up her mind or not, she had already made her decision. She decided to join this Hueco Mundo Expeditionary Force and participate in the crusade against Hueco Mundo.
She was not involved in the battle in Karakura Town, this time, in the crusade against Hueco Mundo, she must be involved.
Most of the reason was because of Gin and… Mazuru.
Obviously, they had become close friends. Obviously, he had said that he would bring Gin back, but then he, also just like Gin, became a traitor. She was so close to Mazuru at that time just like she was with Gin, but because of her inability to stop Mazuru, just like her inability to stop Gin, everything went to the worst possible way. She still blamed herself very much.
'If only I understood both of them better… Maybe… things would have been different.'
"I have already decided!" Nanao met Rangiku's eyes and gave the answer.
Even though Shunsui promised her that he would definitely bring Mazuru back and let him stay in the Soul Society honestly, she did make up her mind to go to Hueco Mundo in person and participate in this Hueco Mundo expedition.
*****
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