Isshin came back to the Soul Society.
(T.L Note: Author didn't wrote about the happenings with the hollow "White" as their will be no change in that event in this fanfic)
No one knew what he had experienced in the world of living but when he came back, he was wounded.
Rangiku and Toshiro asked him what happened after he went out, but he only replied that he had solved the culprit that caused the deaths of the shinigamis stationed in the world of living.
Shortly afterwards, the Tenth Division conducted an investigation, and sure enough, no shinigami stationed in the world of living were killed anymore.
The murders of the shinigami stationed in the world of living came to an end.
Isshin particularly was obsessed with going to the world of living privately, but because of the perfect handling of the matter, no one founded any anamoly. But Rangiku still found out the strangeness.
"Rangiku, what's wrong with you?"
In the tavern, Mazuru and Rangiku got together to drink again. Looking at Rangiku who was in a daze, he asked a question.
Rangiku suddenly came back to her senses, and said to Mazuru, "It's about my captain."
"Oh? What happened to Captain Isshin?" Mazuru asked.
Rangiku shook her head and said, "I don't know exactly what's going on, I feel that he always has something on his mind recently."
As she said that, Rangiku looked around again, and after finding that there was no one there, he whispered to Mazuru, "Not long ago, captain went to the world of living privately."
For the shinigami living in Seireitei, occasionally there will be some instances of secretly going to the world of living, as long as this kind of thing is not brought to the surface, it will be fine.
Rangiku also trusted Mazuru so she told him directly, "I don't know what the captain has experienced there, but since he came back, he has become strange."
'Of course he became strange, because he fell in love with someone in the world of living at first sight... The so-called strangeness is just lovesickness...'
As for Isshin's intention to go to the world of living privately and being plotted by Aizen, Mazuru heard it from Kaname.
As expected, this should be the beginning of Isshin's encounter with Kurosaki Masaki.
But even though he knew these things, it was impossible for Mazuru to say it in front of Rangiku, so he tried to comfort Rangiku, "Maybe it's because of some experiences in the world of living that made him have some lasting feelings. He will be fine after a while."
Rangiku nodded without thinking too much about it.
Rangiku continued to chat, "Speaking of the Shiba family, in addition to the captain of our team, there is also Shiba Kaien, the vice-captain of the Thirteenth Division. Captain Mazuru should be familiar with him."
Mazuru nodded, "Kaien? Yes, I am indeed familiar with him. But it's been a long time since I met him."
Mazuru was the vice-captain of the Thirteenth Division before becoming the captain of the Third Division. At that time, Kaien was the 3rd seat, so Rangiku knew about the familiarity of the two.
"It seems that Vice-Captain Kaien's wife was tested to be pregnant some time ago."
The lifespan of shinigami is much longer than that of ordinary people. Similarly, it is not so easy for shinigami to have children.
Mazuru couldn't help being stunned when he heard the news, and said with a smile, "That's really great news for him."
Rangiku didn't thought too much, she only thought that Mazuru was happy for Kaien as an old colleague. But what Mazuru thought was that it would be a bit unreasonable if he didn't wrap a big red envelope for Kaien and congratulate him.
Because in the original book, Kaien, the genius shinigami, the head of the Shiba family, was a victim of tragedy.
His wife was killed by hollow, and he went to avenge her, but was killed instead.
Even after death, his appearance and power was used by others.
But right now, because of Mazuru, Metastacia, the murderer who killed both Kaien and his wife, was not put in the Soul Society, but in Hueco Mundo. A single different choice not only saved Kaien and his wife but they now are even expecting a child.
After drinking with Mazuru, Rangiku seemed to be in a better mood.
After she returned to the team, she didn't pay attention to the captain's strangeness anymore.
…
Some time passed.
On this day, Isshin left a letter to his vice-captain Rangiku, saying that he needs to go to the world of living for a few days and set off straight away.
Rangiku initially thought he would be back after a few days. However, even after half a month, Isshin still didn't came back, and Rangiku finally realized that something was wrong, but still she chose to believe in her captain and wait a little more.
After some more time, the entire Tenth Division also realized that something was unusual. Then, without any hesitation, Rangiku immediately reported the matter to the First Division.
Captain Yamamoto immediately issued an order to the Technical Development Bureau of the 12th Division to investigate Isshin's disappearance in the world of living.
After the Twelfth Division tracked Isshin's reiatsu, it was finally found that Isshin's reiatsu signature in the world of living had disappeared completely. It cannot be determined whether he was alive or dead.
A captain of Gotei 13 went to the world of living privately, disappeared mysteriously and his reiatsu signature also disappeared. This incident was undoubtedly a big deal for Seireitei which has been quiet for decades.
Gotei 13 immediately investigated the matter thoroughly.
However, despite the Twelfth Division's various methods, they still can't find Isshin's reiatsu.
They investigated the places where Isshin might go in the world of living, but found no traces of either fighting or Isshin's reiatsu.
In the end, after a unanimous decision by Central 46, Isshin's disappearance without reason was defined as defection.
If it was facing the Shiba family when it was still a great noble, Central 46 would not have dared to make such a judgment despite Isshin only being the head of the branch family. But in the current scenario where the Shiba clan was relocated in the Rukongai, they were not taken seriously by Central 46.
The captain of the Tenth Division was identified as a defector by Central 46. Be it the vice-captain Rangiku, the 3rd seat Toshiro or others, none believe that their captain would do such a thing. They knew this decision was made because their captain couldn't be found. But even if it was difficult for them to accept it, they had to face reality. The entire Tenth Division fell into great sadness for a while.
*****
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