I'm in Bleach, starting with Unlimited Blade Works.

Just as Yamamoto Genryusai Shigekuni and the others thought it was a farce, the roar of battle suddenly came from not far away.

At the same time, Captain Aizen's voice also reached their ears.

"Captain Erin, aren't you always staying at the Kuchiki residence? Why are you here at this time?"

"And you're still stopping us from capturing this Shinigami who's already become Hollowfied?"

"Could it be that Captain Erin, you were the one who conducted all these years of etherealization experiments?"

Aizen Sousuke's words caused the captains present to change their expressions.

What does it mean?

Could it be that Captain Erin really...?

Unfortunately, they did not hear what was said next.

Because the battle over there has already begun.

Golden spatial ripples appeared in the air, and even though Yamamoto Genryusai Shigekuni and the others were still far away, they would not mistake Captain Erin's abilities.

After all, decades ago, Captain Erin used this ability to intimidate the entire Twelfth Division and forcefully capture the former Twelfth Division Captain Kisuke Urahara.

"Boom boom boom boom..."

A violent roar followed, and soon, the spiritual pressure of Captain Tosen Kaname of the Ninth Division dropped. If one did not pay attention, they would probably think that Captain Tosen had died in the previous battle.

Next, the spiritual pressure of the Third Division Captain, Gin Ichimaru, also weakened in a shockwave that pierced through the heavens and earth.

"Gentlemen, the sinner Kenpachi Erin has attacked his colleague, a serious violation of the Gotei 13's orders. We must proceed immediately to capture him!"

"Yes, Lord Captain."

"Swish, swish, swish..."

The group of five rushed to the scene of the battle. During their journey, the captains noticed that Captain Aizen's spiritual pressure was also beginning to drop.

Clearly, Captain Aizen was injured in his battle with Captain Erin.

Soon, the group of five directly entered the battlefield, separating Erin from Aizen Sousuke.

Yamamoto Genryusai Shigekuni glanced around, his gaze lingering on the Hollowfied Shinigami that Erin had bound with his Sixty-Three Binding Spell.

"Captain Erin, can you explain to us why you attacked Captain Aizen, Captain Gin Ichimaru, and Captain Kaname Tosen here?"

……

"No, Captain Erin, I just wanted to say that the person I've been waiting for has arrived."

As Aizen Sousuke spoke, five powerful spiritual pressures swiftly entered the battlefield, separating Erin from Aizen Sousuke.

Yamamoto Genryusai Shigekuni stood in the very center, while Soi Fon and Kuchiki Byakuya rested their hands on their Zanpakuto at their waists, their eyes fixed on Aizen Sosuke. If Aizen Sosuke made any move, they would immediately take action.

Zaraki and Ukitake Jushiro faced Erin's side.

"Captain Erin, can you explain to us why you attacked Captain Aizen, Captain Gin Ichimaru, and Captain Kaname Tosen here?"

"Captain-Commander Yamamoto, isn't that a rather arbitrary question?"

"Why can't it be Aizen and the other two who attack me, instead of me attacking them?"

"Humph!"

Yamamoto Genryusai Shigekuni snorted coldly, then took out the letter from his pocket and threw it at Erin.

"Captain Erin, take a look at the contents of this letter first, and then carefully consider how you should clear your name of guilt."

"Otherwise, I wouldn't mind detaining you on charges of persecuting a colleague!"

"Oh?"

Erin raised an eyebrow, and the few sheets of paper that were fluttering in the air flew into Erin's hand like swallows returning to their nests.

After arranging the letters in order, Erin began to examine their contents.

"Commander-in-Chief Yamamoto: "

By the time you read this letter, perhaps I, Captain Gin Ichimaru, and Captain Kaname Tosen will already be dead.

Here, I will first write down in detail what I know in this letter. If we return safely, I will destroy this letter. Everything is just my speculation. Captain Erin has been wronged.

But if we haven't returned by evening, then the three of us have surely already fallen victim to Captain Erin's cruelty.

"Next, I will write down everything I know in this letter. I hope that the captains who read it can learn from our failures and strive to expose Captain Erin's true colors to the world as soon as possible. Then we will die without regret."

"Decades ago, Captain Erin's disciple, Gin Ichimaru, left the 11th Division and joined the 5th Division. The main reason for this was that Gin Ichimaru discovered Captain Erin's secret."

Chapter 172 Letter

"However, at that time, Captain Gin Ichimaru was still very weak. Even if he knew Captain Erin's secret, someone as powerful as Captain Erin would definitely kill Captain Gin Ichimaru without anyone knowing once he discovered that Captain Gin Ichimaru knew his secret."

"Fortunately, I had a slight reputation in Seireitei back then, so Gin Ichimaru found me and asked me to help him transfer to another team."

"After that, Gin Ichimaru came into contact with Shinji Hirako, the former captain of the Fifth Division. Not long after, Captain Hirako and the other three captains met with a terrible fate..."

"After decades of training, Captain Gin Ichimaru felt that his strength had improved somewhat, so he secretly contacted me and told me everything about Captain Erin that he had told Captain Hirako back then."

"Now I will record all the information I know about Captain Erin here."

"Captain Erin entered the Shinigami Academy from Rukongai 146 years ago and performed well during his time there..."

Erin was slightly surprised when he saw this.

Unexpectedly, Aizen's investigation into him started quite early, tracing back to the time he enrolled in school.

However, upon seeing the letter stating that he had performed well, Erin couldn't help but scoff.

It seems that some teachers at the Shinigami Academy have modified their own information.

Or perhaps, when Aizen went to investigate, the school teachers were afraid of offending him, so they deliberately exaggerated his performance.

After all, back in the True Central Spiritual Arts Academy, even though Erin had lofty ambitions, talent isn't primarily determined by one's aspirations.

Back then, calling Erin the bottom of the class would be an exaggeration, but saying she "performed mediocrely" would be a compliment.

Fortunately, Erin knew back then that no matter how strong one was, being fast was always a good thing.

Therefore, even if other sword techniques like White Strike and Kido were somewhat lacking, Erin was among the very few in that generation when it came to the life-saving Shunpo.

Ultimately, in his sixth year, Erin was specially recruited by the Second Division for his exceptional Shunpo (Flash Step) skills.

With that in mind, Erin continued reading.

He wanted to see how Aizen would portray himself.

"After graduating from the Shinigami Academy, Captain Erin joined the Second Division. During his time as a member of the Second Division, he gained the recognition of his fellow members with his powerful skills."

The record on this letter contains all the major events that I have experienced since I entered the True Central Spiritual Arts Academy.

Erin didn't say anything about these things, after all, there were no mistakes or omissions in the investigation.

However, it was Aizen's turn to "suspicion" of Erin.

"After listening to Captain Gin Ichimaru's explanation and investigating Captain Erin's background, I finally found out Captain Erin's reason for conducting the 'hollowfication' experiment."

"As we all know, Captain Erin and Haruko were deeply in love, but two years after their marriage, Captain Erin was separated from Haruko for a long time. According to my final investigation, I finally learned the truth from Captain Unohana of the Fourth Division."

"Although Captain Erin has only served as the captain of the Sixth Division for less than two years, his spiritual pressure has already reached an extremely powerful level, far exceeding that of a captain."

"As for Haruko, because her spiritual pressure was too weak, she could not withstand the pressure of Captain Erin's powerful spiritual pressure, causing her soul to begin to weaken. Even Captain Unohana was helpless in the face of this."

"In order to save Haruko-san, Captain Erin made contact with Kisuke Urahara, the former captain of the 12th Division, during an operation, and used his great strength to force Urahara to research a way to cure Haruko-san."

"This method is the study of the 'etherealization' of the soul..."

"In the end, Captain Erin completed the research and successfully cured Miss Haruko."

"Decades ago, Gin Ichimaru told Captain Hirako about Captain Erin's research on the 'Hollowfication' of Shinigami. In order to investigate the truth, Captain Hirako and others found the place where Captain Erin had conducted his experiments."

"However, to Captain Hirako's and the others' surprise, after treating Miss Haruko, the experimental site had already been abandoned by Captain Erin and was eventually taken over by Kisuke Urahara to continue the research. As a result, Captain Hirako and the others all became Kisuke Urahara's experimental subjects..."

"To prevent Captain Urahara from implicating him, Captain Erin used certain means to get the nobles of the Central 46 to order Captain Urahara's arrest. He even personally intervened during the arrest, demonstrating his formidable strength and coercing Captain Urahara to take the blame for the entire affair..."

“In recent years, although no one has noticed, I have also felt a little uneasy.”

"These anxieties come from Kuchiki Hisa, the wife of Captain Kuchiki of the Sixth Division."

"I was fortunate enough to attend Captain Kuchiki's wedding. When I first saw Captain Kuchiki's wife, I knew that the Soul Society would probably experience another disaster in the future."

"Because I discovered that Captain Kuchiki's wife, Hisa Kuchiki, has a striking resemblance to Captain Erin's wife, Haruko Kuchiki."

"No, I should say that Hisako's condition is more serious than Haruko's."

"Because even Haruko-san possesses spiritual pressure."

"And Ms. Hisa is truly devoid of spiritual pressure."

"In the Soul Society, which is filled with spiritual pressure, Hisa-san can only last a shorter time than Haruko-san."

"In order to prevent Miss Hishin's soul from weakening to death, I speculate that Captain Erin will soon restart the 'hollowization' experiment."

"As the captain of the 11th Division, Captain Erin is the most relaxed of all the division captains because of the presence of Vice-Captain Zaraki."

“Normally, Captain Erin stays at the Kuchiki residence and occasionally goes out to sit at an izakaya. But in recent years, Captain Erin has been entering Rukongai almost every day. I think perhaps Captain Erin has already begun his experiments.”

"So, I secretly investigated the number of casualties among all the Shinigami members of the Gotei 13 in recent years, and finally confirmed that Captain Erin was indeed suspected of secretly restarting the Hollowfication experiment."

"In order to thoroughly investigate the matter and learn from the experience of Captain Hirako Shinji and others, I have left all my investigation records here, and I request Captain Ichimaru Gin of the Third Division and Captain Tosen Kaname of the Ninth Division to cooperate with me in conducting a follow-up investigation on Captain Erin."

"If we return safely, it means that my investigation was wrong, and I will apologize to Captain Erin."

"If we end up like Captain Hirako and the others, becoming Captain Erin's experimental subjects, then please, all captains, be careful of Captain Erin."

"The last words of Aizen Sousuke, captain of the Fifth Division."

"Tsk tsk..."

After reading what Aizen Sousuke had written, Erin couldn't help but admire him.

The intelligence presented here was well-reasoned and supported by evidence, managing to connect seemingly unrelated events.

If Erin hadn't genuinely never conducted any virtualization experiments, he himself might have suspected that he was the mastermind behind it all.

But it's clear that after reading what Aizen Sousuke wrote, even the captains of Seireitei, no matter how much they trusted him, would have a lingering unease in their hearts.

What if everything in this letter is true?