For the current young shinigami of the Soul Society, many of them don't even know about the group of "Bount", because the time when Bount was born was too long ago.
At that time, there was not even the Technological Development Department.
There was only a Seireitei Research Institutes.
The birth of "Bount" originated from an experiment called "Eternal Life" in the Seireitei Research Institute. Because of the improper operation of the experimenter Ran'Tao, a violent explosion occurred in the research institute.
What happened was that one of the Jōkaishō exploded after a meltdown, even destroying a tenth of the Seireitei and releasing energy from the artificial souls that made its way into the cycle of rebirth, affecting souls that were approaching reincarnation in the human world.
(T.L Note: The Jōkaishō (Emblem of Buddhakṣetra) are massive, powerful devices that were once used by scientists in the Seireitei to power their experiments and allow them to control the generation of Reishi)
The affected souls were born all around the Human World with powerful spiritual abilities and became known as the Bount.
Due to the unique circumstances of their creation, the Bount were born with the ability to maintain eternal youth by consuming either living or dead Souls; this, combined with their fatal attacks on living humans for their Souls, led to the myth of the vampire being created by human society. In addition, the visible agelessness of the Bount caused humans to persecute and hunt them down under the impression that they were witches and monsters. Eventually, the Bount decided that they had no place in the human world.
What's even more tragic was that Bount didn't have the ability to reproduce, and could only survive by sucking the souls of the dead.
Because the birth of Bount originated from an experiment error of the Soul Society, so many years ago, the Soul Society launched a hunt for Bount, and because the experiment that caused them to be born was not very glorious, after the extermination of Bount, all the information about them was also destroyed.
This was also the reason why the young shinigami in the Soul Society have never heard of Bount. In addition to the long amount of time passed, there was another part of the reason, which was due to the lack of information.
Only old shinigami like Kyoraku Shunsui, Ukitake Jushiro, etc know about these things and Mazuru also knew about Bount, one was because there was indeed a plot regarding them in the anime, and the other was that he learned about it from the Great Spirit Book Gallery.
After slaughtering the Central 46, he once entered the Great Spirit Book Gallery with Aizen and read the information recorded in the Great Spirit Book Gallery for quite a while.
In addition, the souls of the dead Central 46 were all imprisoned by him along with the soul of Tsunayashiro Tokinada in the past, so they were also under his control. Whether it was the officials of Central 46 or Tsunayashiro Tokinada, they all had access to the Great Spirit Book Gallery, even Mazuru doesn't know how many secrets in the Soul Society he will know after he complete thoroughly searching their memories.
In other words, although Mazuru was young, he knew as many secrets as Shunsui, an old and veteran captain, if not more.
"If I remember correctly, in the original book, the plot about the Bount could be described as annoying, long, and boring..."
Mazuru couldn't help but fall into deep thought.
However, since Bount had started hunting the souls of living people in the world of living, it meant that they will attack the Soul Society soon. As one of the captains of Gotei 13, Mazuru obviously cannot just sit idly by.
It was his duty to maintain the peace of the Soul Society.
(T.L Note: Yeah right)
Even though the head-captain had asked Nemu to convey the task to Kurotsuchi Mayuri, but waiting for Kurotsuchi Mayuri to recover the experimental data and information destroyed by the previous Twelfth Division, who knows how long it will take. And waiting while until he finally recovers the information, maybe it will be already the time when Bount invades the Soul Society.
So rather than waiting for Mayuri, Mazuru quickly moved to take action.
He knew that the shinigami named Ran'Tao who indirectly created Bount was still alive. Because of the failure of that experiment, she was permanently expelled from Seireitei, and now she was hiding somewhere in Rukongai.
Compared with Seireitei, Rukongai was many times bigger.
Even for the shinigami of Seireitei, it was quite difficult to find the Ran'Tao that was exiled in the huge Rukongai. But for Mazuru it's not a troublesome thing.
The only problem, probably, was that he needs to walk into the Great Spirit Book Gallery again.
Great Spirit Book Gallery records a series of important events and secrets of the Soul Society from ancient times to the present. It was an extremely special kind of archive, because the information records inside it have nothing to do with the shinigami's will. It can be said that as long as something happens in Seireitei, even if it was not added by anyone as long as it was not covered up, it will be forcibly recorded by the Great Spirit Book Gallery.
It was also because of this that idlers cannot enter the Great Spirit Book Gallery at all, and even if they enter, they must obtain permission from Central 46.
If it was in the past, even if Mazuru learned of a way to sneak into the Great Spirit Book Gallery from the soul of Tokinada, it would not be so easy to enter it, but it was different now.
Central 46 had just been slaughtered by Aizen, and the new Central 46 had not yet been formed.
This gave him a chance.
Following the example of Tokinada back then, he successfully sneaked into the Great Spirit Book Gallery.
Then Mazuru began to investigate the history of the Twelfth Division.
The time point of the tracing back was set before the establishment of the Technological Development Department. In the end, he found the data about that experiment in the video data that was forcibly recorded in the Great Spirit Book Gallery and he also got what he needed to track Ran'Tao, the reiatsu sample of the researcher.
With Ran'Tao's reiatsu signature, it would be easy for him to find her in the vast Rukongai.
…
North Rukongai, Kusajishi District.
As a place next to Zaraki District, Kusajishi District was also the place where Zaraki Kenpachi stayed for many years, so it was obviously not peaceful.
It was like this when Zaraki Kenpachi was living there and it's also true after he left.
In that chaotic place, there were souls fighting each other for their own survival every day, and death was a norm there.
Although the ranking of the Kusajishi District was higher than that of Zaraki district which was placed at the end, the overall environment of Kusajishi District was no different from that of the Zaraki district.
On the edge of the Kusajishi District, there was a hill, the place was so barren that it could be said that even the birds won't shit there, so few people visited that place.
*Boom*
A Kidō flew out, blasting a breach in the hill, revealing a cave.
Mazuru's figure flashed away, and came to search for the master of the cave.
Inside, a woman wearing a researcher's white coat on the outside and a Shihakushō on the inside was originally asleep. But hearing the movement caused by Mazuru, she suddenly woke up and turned around and found out that a shinigami wearing a white haori over his Shihakushō was already there.
"I found you, the creator of Bount, the criminal exiled by Seireitei — Ran'Tao."
Mazuru looked at the woman named Ran'Tao with a cold smile.
*****
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