The Rebirth In Bleach
Fifty Years

Yamamoto looked at his student in front of him. The silence occurred after Itsuki finished speaking.

"unneeded.

"Huh?"

Itsuki was shocked by what Yamamoto said. What does he mean by 'Not necessary'?

Seeing Itsuki's confusion, Yamamoto clarified

"Because of the lack of captains, other captains have recommended people to replace their absence. Your name is the only one that appears for Division 2. You have the power to support it and you are the current 3rd Seat, plus, due to its secrecy, we don't know much about the character of some of the members inside Onmitsukido."

Itsuki nodded after hearing this as Yamamoto continued,

"I will put my trust in you and you will need the approval of Onmitsukido. It was still a separate force from the Gotei 13"

Receiving his teacher's approval, Itsuki walks back to the 2nd Division headquarters. He had just walked through the door of Division 2 when Soi Fon ran towards him.

"There's an Itsuki problem, Marenoshin just handed over his retirement papers. Apparently, he wanted to focus on his family because his son had just been born."

"What does center 46 say?"

"They agreed."

This is indeed a problem. Currently Onmitsukido is without captain and lieutenant.

Arriving at Itsuki's main hall saw that all the members had arrived. Itsuki is currently the only corps commander available and has the most advantages.

Itsuki did not say anything as he walked in front and stood there looking at the members. The others read his intentions as they looked back. If they are not satisfied, they can challenge it.

Itsuki still had to do something as he then let go of the reiatsu and forced it on them. 

Onmitsukido immediately felt the pressure and no one dared to look at him. Some find it harder to breathe while the weaker ones instantly faint. The current Reiatsu Itsuki is huge. It had reached the level of an advanced captain and was on par with Zaraki Kenpachi but still inferior to Yamamoto. The difference between hers and Zaraki is that he can perfectly control hers, none of which is leaked.

Pulling back his reiats, he looked towards the members to see their next move. One by one they all knelt down. At first, they hesitated but seeing his strength determined their minds.

'If it's him ...'

'He may be stronger than ...'

Thoughts like this surrounded them as they greeted their new leader. In Soul Society, the strong are respected.

So, in this one session, Itsuki was able to unite the entire Onmitsukido, which took years for Yoruichi and Soi Fon. There may be unity from the Yoruichi era, but it still shows how important power is.

Itsuki's reputation never loses to Yoruichi in the army as his past exploits give them goosebumps. Every time he cooperated with the executive militia, he would be in the spotlight. Looks like he's not the commander of the detention unit corps but a highly trained assassin in the executive militia.

Major changes occurred within Onmitsukido with their regular training and a few days later, Itsuki officially became the captain of the 2nd Division. Soi Fon was later appointed commander of the patrol corps corps, effectively becoming Lieutenant. As for the Detention unit, Itsuki pleads for Saedani Maneko to be released so that he can lead the detention unit.

His request was accepted and his fear was returned to him. Itsuki believed him because he was one of the 'masters' in the maggot's lair. There was no resistance from the Shihouin family as they were still hiding and by the time they took any action, Onmitsukido would firmly be in Itsuki's hands.

There was some opposition as both were women but only a few blows were needed to stop these voices.

Currently he is with Rangiku walking down the park. Rangiku looked at Itsuki and knew that he was not as usual today. He seemed to be in his own world, and this made Rangiku worry, he had never been like this before.

Rangiku was right, Itsuki felt very guilty while being with him. After what happened to Yoruichi and knowing that he would not be the only one, he finds it hard to look up to her.

"What's up, Itsuki?"

Taking him out of his mind, he looked towards Rangiku. Rangiku stared back at his jewel like eyes and the two just stood there.

Silence followed as no one said anything with Itsuki growing more guilty. He has to come out with it.

"Ranguoz. I'm..."

"Don't say that"

He knew exactly what he wanted to say when he saw the guilt in his eyes. She herself had seen two other girls who were almost turned upside down for her and had decided on her own. All he wanted to do now was occupy the most important place in his heart. Even though he decided himself to share it with her, he still selfishly wanted to be number one.

However it hurts her that she has to share with him but for the man she loves, she is willing to do anything.

He had been with her the longest and knew the effort she had put in just to get to where she was now.

Reading his intentions, Itsuki's burden slightly lessened as another burden was placed on his shoulders.

'How am I going to tell him?'

As this worry once again appeared in his head made Rangiku panic.

It was relatively peaceful in Soul Society when Itsuki went to Yamamoto for access to Daireishokairo. 

Daireishokairo is a large spirit library of the Soul community that houses all the knowledge and history of Soul Society. 

The main goal is to find a book that Aizen will use to learn how to make a king key. Another goal was to increase his knowledge and find ways to increase his strength.

Itsuki will visit the Kuchiki household and defeat Byakuya before returning to his division. Soi Fon undergoes a major change to her attitude as she becomes more reserved, usually returning to her norm when she is alone with Itsuki. Itsuki personally took over his training, arguing with him occasionally.

Like the anime, his thirst to surpass Yoruichi only grew as he dedicated most of his time to training. This causes Itsuki to be faced with a problem that plagues all leaders, documents.

Years passed as Itsuki took control of his Bankai and it became increasingly difficult to remember the information received from the library. All eidetic memory does is remember everything but nothing is organized and all is jumbled up, so he remembers a show from his previous life.

It was one of his favorites and the protagonist used a technique known as mind palace which is also known as the locus method. The ability to store information and data at once can retrieve it quickly and efficiently in the future. 

The individual will remember the layout of the building, or some sort of geographical entity consisting of a number of discrete loci. Loci means place in Latin. When an individual wants to remember a set of data, he or she will walk through this locus and will enter the information into the item by forming some sort of image between the information and the feature of that locus.

When someone wants to retrieve information, the individual will walk through this locus that allows them to retrieve the desired information.

Using the memory partition and acceleration of his mind, he imagined a library similar to that of Daireishokairo except it was empty. Imagining it, the locus he specified was a different part of the library. For example, History is one locus and experimentation will be another locus. 

He then recalled every book he read and started filling his library. After he finished it, it meant that he would have all the knowledge of Soul Society in his head as a form of database.

Central 46 seems to have forgotten that Itsuki has access to the library, allowing him to learn everything there is. Still who would believe that one was able to memorize an entire library.

However, this took a very long time, and by the time he finished, fifty years had passed. He never spent all that time in the library and would leave it from time to time. 

He would examine his subordinates and Soi Fon, who eventually began to take charge of his role as Lieutenant. In addition, he will be at Kuchiki's sparring house with Byakuya or having a meeting with Rangiku.

Yuroe had become the third seat of the fourth division while Kotetsu Isane had become a lieutenant. He is the younger brother of Kotetsu Kiyone who serves Ukitake. Ketaro himself had joined the kido corps when he learned that he had a natural talent for it.

Seikyo himself had also become a fully grown bird. Being able to fly so high in the sky, he was able to touch the top of the barrier surrounding Seireitei. Her wingspan reached 2 meters and she had beautiful white fur and blue eyes.

His reputation was also quite vast in Seireitei. There's a rumor that if you see this bird, it means death is searching, meaning the 2nd Division captain is looking at you. For female Shinigami he is only known as the Prince while others call him Raijuu, the Lightning beast because of his speed.

Itsuki had no idea who spread this rumor or how it was spread, it was quite close to the truth. But Itsuki knew that it was just a rumor made by someone because that ability was only known to him and Seikyo.

He is currently practicing a match with Soi Fon at the training ground where he and Yoruichi used to train. Initially, Soi Fon was quite surprised by the existence of a large space unknown to the outside world, but once Itsuki told him about who used it, he felt silent. Itsuki could see the fire in his eyes when his name was mentioned.

Itsuki and Soi Fon were currently wearing normal Onmitsukido training clothes as Itsuki countered his attack. Using one last strike, he flicked his forehead causing him to jump backwards.

"Itsuki, fight seriously"

Itsuki just smiled while looking at Soi Fon. Seeing that smile, Soi Fon's eyes twitched before she took a position.

"Alright then, I will make you fight seriously. This is the skill I've trained to defeat him. Don't hold back, I don't know how to control it yet."

Carrying his hand to the side, he released his reiats when a high level kido was used. The back of his training clothes was torn and his reiats were blazing.

'This must be the early stages of his Shunko'

Disappearing, she appeared next to Itsuki swinging her legs horizontally. Itsuki avoided this because her smile never escaped her mouth. Soi Fon saw this and felt that something was wrong.

Suddenly, Itsuki also activates Shunko and confronts Soi Fon, leaving him astonished. For him, he had created a powerful technique from the start but his captain in front of him could use it while mastering it better.

"How do you know this?"

"This technique is called Shunko, it was taught to me by Yoruichi."

Soi Fon lowered his head after this,

'He even ...'

Itsuki could see what he was thinking and walked up to him,

"He didn't teach you because it's a dangerous technique. I learned it by chance"

This seemed to stir up his mood as he prepared to fight again.

"Then I'll beat him with this"

So, from then on Shunko practice was added.