One by one the Captain's and their Vice-Captain, some of their lieutenants show their own Shikai.
Then they start to teach them how whey achieves the first form of their own Zanpakuto, based on what they said.
It is not enough to simply know the name of one's Zanpakuto. If a wielder were to lend its power to its Zanpakuto, the weapon would become stronger. To fully use a Zanpakuto's power, a wielder must get to know its Zanpakuto's spirit
Jinzen is the only way to carry on a proper conversation with one's Zanpakuto. One places their sword over their lap, takes a meditative pose, and forces their mind to become one with the Zanpakuto.
In this form, one can call out the true form of the powers of their Zanpakuto. It has been refined over thousands of years, since the beginning of Soul Society, to allow one to commune with their Zanpakuto.
This advanced form of training is far different from attaining abilities by force. In this form, one enters a state of calm to enter the inner world of the Zanpakuto and engage them there.
In this state, a wielder will have to fight their Zanpakuto spirit in order to attain access to new abilities. Unwilling to teach its owner these abilities, the Zanpakuto spirit engages its wielder in a battle, the likes of which has never taken place before.
In this meditative state, one is so deeply entranced, even sustained wounds are ignored. Any form of injury sustained in the inner world while in this meditative state is reflected in the real world.
If you're lucky enough, your own Zampakuto will respond to your call, but if not, maybe it will take lots of years to successfully talk to your own Zampakuto.
Normally, the Zanpakuto spirit can only be seen by its wielder. Otherwise, they dwell in their own "Inner World", created within the minds of the Shinigami who wield them.
As such, each Shinigami's inner world is drastically different from another Shinigami's and is unique to themselves. A Zanpakut��'s spirit can bring its wielder into its inner world, though Shinigami can voluntarily achieve this simply by meditation.
Depending upon the Shinigami's ability to communicate with and control their Zanpakuto's spirit, a Zanpakuto can manifest itself in two additional forms and revert to a sealed state.
These two forms, known as Shikai and Bankai, are akin to upgrades for the Zanpakuto, giving it abilities far beyond those of its simple use as a sword. Shinigami usually carry their Zanpakutō in its sealed state and activate the released forms as necessary.
A Zanpakutō can change size and shape depending on the spiritual strength of the owner., but some Zanpakuto are based on the owner's weakness or sometimes what they needed.
For example, Unahana who expert on using sword and the previous Kenpachi have the strength to overpower all the Shinigami on all Division,
She who is strong enough gets a Shikai that can heal, it shows that her Shikai is the form of her gentle nature.
While her Bankai, on the other hand, is opposite to her gentle nature, her Bankai Unohana's is her original violent and bloodthirsty nature.
This shows that her Bankai evolve into the form of what she really needs, her Shikai gives her the healing property that she needed when she releases the title Kenpachi, while her hidden nature hides on her own Bankai.
All Zanpakuto have two levels of release. The first one is Shikai and the second one is Bankai. One must be able to perform both of them to become a captain. The power and forms of Shikai and Bankai are dependent on the Zanpakuto and vary according to the wielder's strength and training.
Most Zanpakuto look like regular katana, with slight variations between them as one would expect between different swords.
Zanpakuto can also be disguised as other objects, though such objects seem to need to be of similar proportions to the sword itself.
But Xin Zampakuto is slightly different, he is the only one who has Zanpakuto without any blade at all.
No one knows why he got that, but only Xin knows how he got it and what kind of benign is inside of his own Staff.
"Next is the Captain of the 5hth Division, Captain Sōsuke Aizen,"
Captain Aizen who smiling gently walk in the middle of the ring, he politely bow to all of them and said," I will let you show you guys my own Shikai, it's called Mirror Flower, Water Moon a water-based Zampakuto,"
He then takes his Katana from his waist and slowly pulls it in front of everyone, Xin looking at him attentively, he wants to know how powerful that Shikai really is.
Then they show a strange illusion of a flower field, it looks like a normal Illusion to confuse an enemy but Xin already sees what is really hidden on that Shikai.
The flower field that he shows is just a distraction, Xin clearly sees that simple trick actually concealing the most powerful trick of all.
The Shikai change and rewrite the thought of each one of them and let them believe that his Shika is a simple illusion ability that shows some elegant image.
In short, Aizen wants them all to believe that his Shika ability is auxiliary for those scholars who like Calligraphy, Tea Ceremony, or Painting.
Xin sees the face of those who see the illusion did not change, except benign marble to what they see and the beauty of the illusion that he makes.
Momo said," Beautiful, I did not expect that there's a beautiful Shikai in our Soul Society."
"It's also elegant, just like Captain Aizen nature," Nanao said.
Xin looked at Yachiru and asked," if you see it clearly?"
Yachiru looked at Xin cluelessly then nodded.
"Yoru good," Xin smiled and said.
"A liar?" Yahciru doubtfully said.
"We will know it in the future," Xin mysteriously said.
Yachiru was still confused but still she nodded on what Xi said, that's right, only the future can tell what is really going to happen.
After his performance, a bunch of women and girls were smitten by his performance, it seems that the trick is pretty effective.
But in the end, Aizen can't help but to look at Xin's position, after seeing talking toYahiru excitedly, he felt content seeing the result.
'It seems my plan works,' Aizen thought, he then walked after adjusting his glass while politely smiling at the other Captain.
But what he don't know that some of the women from the Shinigami Women's Association look passive to him, as if they discover something fishy to hs performance.