Bleach: Getting Stronger Starting from Teaching at the Spiritual Arts Academy

Aizen Sousuke used fungal Hollows to create catalysts for Hollow Relic growth, based on the principle that Hollows can evolve by consuming other Hollows.

"Yes... Death's spirit cannot grow by devouring its own kind."

But another thought arose in Aizen Sousuke's mind—is that really the case?

Neither he nor his teacher had conducted similar experiments: could Death grow by consuming the spiritual particles of its own kind?

“We will continue to observe and record the growth of these experimental subjects. If they can grow to the level of Great Hollows, it will be a major breakthrough,” July said. “I came here to collect a batch of Soul Remains Inhibitors.”

According to information obtained from the Mizutani family, there are likely many spirits residing in Tetsuya Miyamoto's laboratory.

Chapter 207 Heading to the Real World

Above the present world, a portal to another dimension slowly appeared.

After the door opened, July and Yoruichi Shihouin walked out of the portal.

Several elite members of the covert mobile unit followed behind them.

The Covert Force received a mission to investigate Tetsuya Miyamoto's experimental base. In July, at Yoruichi Shihouin's invitation, they went to the human world together.

Currently, July and Aizen have made some progress in their research on Hollow Relics, and they are now capable of creating Hollow Relics with the strength of ordinary Hollows. Given time, it is not impossible for them to cultivate Hollow Relics to the level of Gillian.

However, their progress in the direction of the Death God's remains is still very limited.

Therefore, July was very interested in the Shinigami Relic technology that Miyamoto Tetsuya had mastered.

Based on observations in July, Miyamoto Tetsuya was already able to mass-produce Shinigami Reikai at the Shinigami Corps level.

After a long period of iteration, Tetsuya Miyamoto's mastery of spirit remains technology is far superior to that of Seireitei's sealed spirit remains technology.

At that moment, two cloaked undercover agents from the covert mobile unit appeared before the two men.

These two spies came to scout the location in advance.

"Vice Captain, according to the intelligence obtained from the prison team's interrogation, Miyamoto Tetsuya's experimental base should be located at the bottom of this lake," the spy said, pointing to the huge lake below.

"Have you found the entrance?" Yoruichi Shihouin asked.

"Found it. We just used our instruments to detect the spiritual pressure fluctuations, but they couldn't detect them. This experimental base should have materials like killing stones to block the spiritual pressure fluctuations," the spy said.

Miyamoto Tetsu also built his experimental base in a lake in the present world. The outer layer of the lake-bottom building is also blocked by killing stone to prevent the internal spiritual pressure fluctuations, making it extremely secretive.

Over the years, the Quincy and Shinigami active in the modern world have failed to discover this secret experimental base.

"Take us to the entrance," Yoruichi Shihouin nodded and said.

"Yes!"

The two spies led the group to a thicket of bushes on the shore of the lake.

They walked along the bushes for several dozen meters and then came across a huge rock hidden in the bushes.

According to intelligence provided by the prison team, this boulder, not far from the shore, is the entrance to the experimental base.

"The passage into the experimental base is hidden beneath this rock," the spy said.

The two spies moved the stone aside, revealing a tunnel with obvious signs of human intervention.

"Everyone, stay alert. Before we find Miyamoto Tetsuya, try not to disturb the people inside. Miyamoto Tetsuya has the ability to open the Black Chamber; we can't let him escape!" After arranging the battle plan, Yoruichi Shihouin said to her two subordinates, "You two guard the door. If you notice anything unusual, contact me immediately using the communication device!"

"Yes!" the members of the covert task force replied.

"Teacher, let's go inside first," Yoruichi Shihouin said.

July nodded and was the first to enter the artificial tunnel.

Perhaps due to its proximity to the lake, the man-made tunnel was somewhat damp, with some water even pooling on the ground.

Water droplets continued to fall from the top of the tunnel.

They were all death itself, so naturally they wouldn't make a sound when stepping on the puddles. The group passed through the tunnel without making any extra noise.

The group quickly passed through the tunnel and arrived at a stone gate.

This stone door is made of murderous stone. Next to the door is a combination lock carved with many animal patterns. You must turn the corresponding pattern code to open this murderous stone door.

They had already learned the pattern code through the interrogation information provided by the prison team. The secret agent stepped forward and spun the disc more than ten times in the correct order and number of rotations.

After a crisp click, the stone door slowly opened.

The moment the stone gate opened, before the guard inside could even see who was outside, his own shadow snapped his neck.

Yoruichi Shihōin stepped through the stone gate and into the house, cautiously observing his surroundings.

Yoruichi then gestured for him to follow, indicating that there was no danger.

Beyond the stone gate was another passage, but the passage inside the stone gate was noticeably cleaner and tidier than the tunnel outside, with brick and stone paving the walls.

The group walked through a narrow passage and arrived at a spacious hall.

"This floor is the living area and training area. The experimental area is on the floor below. The entrance to the experimental area is on the right," Yoruichi Shihouin said softly, pointing to the right side of the hall.

This is the living area of ​​the experimental base, where many spirits dressed in white lab coats and white kimonos are active.

Newly created spirit remains need a period of adjustment.

They must first be instilled with some common knowledge about Soul Society and undergo some training before they can be sent to Soul Society.

In July, they used the Shadow Space to hide the group in the shadows of a corner and moved along the corner toward the right side of the hall.

The group moved in the shadows, and no one noticed anything unusual.

You need to take an elevator to get to the next floor, but there are guards in front of the elevator.

The elevator is used frequently, and other people on this floor will also use it to go to the next floor at any time. If the guards in front of the elevator are dealt with, their intrusion will be easily exposed.

However, the covert task force was prepared for this situation.

In July, he used his shadow to snap the guard's neck and pulled his body into the shadow space.

A member of the covert task force took out a ball of white, flour-like substance and stuck it to the guard's face.

A moment later, the white dough transformed into a human face that looked exactly like the guard.

He handed the face to a companion who was about the same height as the guard: "You take it."

Death took the face and put it on his own face. The dull face immediately came to life, looking no different from a living guard.

“Let’s keep going,” Yoruichi Shihouin said.

The group took the elevator to the experimental area.

In the experimental area, countless glass jars were neatly arranged in the hall.

Inside the glass jar filled with spirit nutrient solution, spirit remains being nurtured float.

"Is Miyamoto Tetsuya going to create an army of spirit corpses?!" Yoruichi Shihouin exclaimed in surprise.

Although she had read the intelligence and had some expectations in mind, she was still somewhat shocked by the scale of the laboratory when she saw the glass jars with her own eyes.

Without even needing to count, Yoruichi Shihouin felt that the number of spirit remains here had reached several hundred, and there were dozens or even hundreds of active spirits on the upper floor.

The remains of the deceased at this experimental base are approaching a thousand!

However, most of the spirit remains are still being nurtured.

In July, observing the shapes in these bottles and jars, she discovered some clues.

Tetsuya Miyamoto's method of cultivating his spirit begins with an embryo!

Many of the remains here are still in the embryonic or infant stage.

This is different from his method of cultivating spirit remains.

Both he and Seireitei used the spiritual seeds of adult Shinigami to cultivate adult-sized spirit remains.

As someone with a deep understanding of spirits and spirit remains, July was able to deduce many things from these spirit remains in the laboratory.

"If Miyamoto Tetsuya's spirit remains were cultivated from the embryonic stage... then the time cost would be much higher," July thought to herself.

The souls of this world possess flesh and blood bodies composed of 'spiritual particles,' just like the flesh and blood bodies of humans in the present world composed of 'physical particles,' and are subject to birth, aging, sickness, and death.

Even for ordinary souls with the potential to become Grim Reapers, the growth time of their spiritual bodies is much longer than that of ordinary human souls.

It would take quite a while to cultivate a spirit in embryonic or infant form into an adult form.

"Miyamoto Tetsuya must have mastered the technique of accelerating the maturation of infant-shaped spirits," July concluded.

According to information obtained from Shingo Mizutani, his granddaughter's remains were created in recent years.

This takes much less time than the development of a soul with the potential to become a Grim Reaper.

In July, he thought of something. When he dissected the spirit corpses created by Tetsuya Miyamoto, he found that the development of the spiritual pressure core, locks, and soul sleep of those spirit corpses did not match the development level of the spirit body.

The core of spiritual pressure is the core that bears the spiritual pressure of the Shinigami. The lock and the sleep are the acupoints that generate spiritual power. They are the vital points of the Shinigami's spirit body and are closely related to the strength of the spirit body. However, the development of the core of spiritual pressure, lock and the sleep of the spirit body of those spirit corpses is far inferior to that of the spirit body.

This may be due to the use of techniques to accelerate the maturation of spirits.

Tetsuya Miyamoto used the technique of accelerating the maturation of spirit bodies to bring them to the limit that the spiritual pressure core could withstand.

The development of the spirit body also promotes the development of the spiritual pressure core, the lock, and the soul sleep.

In this way, Miyamoto Tetsuya will also shorten the time it takes to cultivate an embryo into an adult Shinigami.

"If we can get the technology to accelerate the growth of spirits, this trip will be worthwhile." July wanted to verify her idea, but she needed to find Miyamoto Tetsuya or his research materials first.

Once on the same level, there were no more killing intent stones to block the way, and July was able to sense the spiritual pressure fluctuations of this level through her spiritual senses.

He quickly locked onto the strongest spiritual pressure fluctuation.

"Yoruichi, can you help me find the room where the research data is stored? I'll deal with Miyamoto Toru; his strength has probably reached the captain level," July said.

"Alright!" Yoruichi Shihouin had no objections.

The original mission of the Covert Task Force was to confirm the status of this experimental base. She only needed to report the information she had gathered to the Seireitei to complete her mission.

With July joining the mission, the task became capturing Tetsuya Miyamoto.

July moved swiftly using her shadow, rapidly approaching the location of Tetsuya Miyamoto.

Upon arriving near Tetsuya Miyamoto, July immediately opened her Shadow Space.

Miyamoto Tetsuya noticed the shadow expanding and quickly retreated.

In July, during a study tour with Yamamoto Genryusai Shigekuni, he conducted a test and found that the expansion speed of his shadow space after Bankai was faster than the speed of Yamamoto Genryusai Shigekuni's Shunpo!

At close range, it is almost impossible to escape the capture of the shadow space by using the speed of Instant Step!

The pitch-black shadow space instantly enveloped Miyamoto Tetsuya's body, pulling him into the shadow space.

"Your experimental base is really big; even my shadow space can't completely cover it," July said with some envy.

Although the Mizutani family was only a middle-class noble family, they were very successful in the business world and had a lot of assets. With the Mizutani family providing them with a steady stream of supplies, Miyamoto Toru was able to expand his experiments to an ever-growing scale.

“Shikatoshi Nanatsuki…” Miyamoto Tetsuya looked surprised. “I didn’t expect to see you here.”

"You've been hiding in the mortal world for so many years, yet you still know me." July raised an eyebrow.

"Of course I know you. Even if I were in the human world, I wouldn't be completely ignorant of the Soul Society." Miyamoto Tetsu also sighed. "From being brought to the Seireitei by Shikatori Hakunzai to growing into a captain-level Shinigami, only a little over ten years have passed. In the entire Soul Society, I'm afraid you can't find many Shinigami with such a growth rate!"

"More importantly, your body is still just a spirit skeleton!" Miyamoto Tetsuya's gaze towards Shikatoshi Nanatsuki became intense.

“What a blunder. When you were brought to Seireitei by Shikatori Hakunsai, I didn’t realize that you were one of the last batch of spirit remains to be created.”

“By the time I started looking at your resume, you had already grown up.” Tetsuya Miyamoto said with regret.

At the time, Tetsuya Miyamoto was the third seat of the 12th Division and knew that Kiryu Hikifune was trying to treat Hakunsai Shikatori using the Reikai technique.

However, Miyamoto Tetsuya was unaware that the remains that Shutara Senjumaru took with him were delivered to Shikato Hakunsai.

Therefore, he did not pay attention to Shikari Nanatsu in his early stages of growth.

He was in the human world, so news from the Soul Society was relatively slow for him.

It wasn't until he heard about Shikatori Nanatsuki, a rising star who had only emerged in recent years, from the spirit corpse and the Mizutani family, that he deduced that Shikatori Nanatsuki must be the spirit corpse that Shutara Senjumaru had taken away.

“But… now that it’s been delivered right to my door… how delightful, hahahaha—” Miyamoto Tetsuya revealed a slightly morbid smile, “Such valuable material should be given to me to study properly!”

"Let me see what secrets you're hiding!!!"

Miyamoto Tetsuya suddenly waved his hand, and the surrounding glass jars shattered instantly.

bang bang bang-

After the glass jar shattered, the spiritual nutrient solution inside spilled all over the ground, and the spirit skeleton inside opened its eyes.