"Professor, I hid the true ability of my Zanpakutō," Sōsuke Aizen said after careful consideration.
Since his Professor had already discovered him sneaking out to read books, he must have also seen the guards ignoring him when he went to the Seireitei and the noble district.
An ability like that was clearly not something that could be achieved by a water-type Zanpakutō that merely manipulated mist and water flow to create reflections.
Therefore, Aizen abandoned any hope of denying it and chose to confess directly.
Hiding his ability wasn't an unforgivable act, especially since he had only just joined the dojo at the time.
"I know," Sora said with a light laugh. "Your Zanpakutō, Kyōka Suigetsu, its real ability isn't controlling mist and water."
Aizen felt a sense of relief that he hadn't tried to argue. His Professor had indeed already figured out his ability.
"Yes. Kyōka Suigetsu's true ability is not controlling mist and water, but a hypnotic power that can dominate the senses," Sōsuke Aizen revealed.
"That's about what I guessed," Sora nodded, not surprised at all. "It's an excellent Zanpakutō ability, very useful in both combat and daily life."
"As expected of you, Professor. Not even Kyōka Suigetsu can hide from your eyes," Sōsuke Aizen said with emotion.
"Sōsuke, the information you know about the Soul King all comes from the books in the nobles' collections," Sora continued their previous topic. "But what is recorded in the books they preserve may not be the complete truth."
"If you want to know more about the Soul King, perhaps you could visit Isshin's family. The five great families have collected much older historical records," Sora encouraged Aizen to look up information at Isshin Shiba's place.
Sora planned to research the human-faced Hollow and the Soul King fragment he had obtained. Aizen would inevitably discover the Soul King's secrets, so it was better to let him know about these things a bit earlier.
"The Shiba clan... I've heard they are one of the five great noble clans of the Soul Society." Aizen nodded. "I understand. I'll find a chance to go and see in the next few days."
As they spoke, Aizen finished grinding the medicinal components. Sora then followed Miyamoto Tetsuya's formula to prepare the spiritual body growth agent.
The preparation of the spiritual body growth agent was not complex. The main ingredient was the blood of the human-faced Hollow, while the other materials were drugs used to promote growth effects and neutralize rejection reactions.
A moment later, Sora had created one dose of the spiritual body growth agent.
"This is the spiritual body growth agent Miyamoto Tetsuya used to cultivate Reigai embryos. Take this Reigai out and conduct an injection experiment," Sora said, selecting a growing Hollow Reigai test subject and giving the order.
Miyamoto Tetsuya's research data had detailed records of the growth agent's effects on conventional Reigai, so Sora didn't need to repeat those experiments. He wanted to test if this agent had any effect on the Hollow Reigai they were cultivating.
Sōsuke Aizen took out the Hollow Reigai test subject and then injected the prepared spiritual body growth agent into its body.
The Hollow Reigai Sora had chosen had already grown to the level of a normal Hollow.
After the injection, the Hollow Reigai didn't have much of a reaction.
Sora picked up a scalpel and made a light cut on the Hollow Reigai's arm. The sharp scalpel instantly sliced through its skin.
But very quickly, the skin on the Hollow Reigai began to heal rapidly.
This Hollow Reigai was only at the level of a normal Hollow and did not have the ability of high-speed regeneration. Therefore, its healing ability clearly came from the spiritual body growth agent that had just been injected.
Aizen recorded the experiment on the side, saying, "The Hollow Reigai's Spiritual Pressure fluctuations show no change, but it has developed a powerful regeneration phenomenon."
The two continued to repeat the test. It wasn't until half an hour later that the Hollow Reigai's high-speed regeneration ability completely disappeared.
"Professor, it seems this spiritual body growth agent provides little help to the growth of a Hollow Reigai," Sōsuke Aizen said.
The growth agent's effect on the Hollow Reigai's development was even less than the growth catalyst Aizen made himself from the fungus-type Hollow.
"It has a greater effect on Shinigami Reigai. It's likely that the Hollow spirit particles within it don't provide much of a boost to a Hollow, but they can cause a relatively large stimulus for a Shinigami," Sora analyzed.
According to Miyamoto Tetsuya's experimental data, the growth catalyst had a significant effect on Shinigami Reigai, almost comparable to the effect of the fungus-type Hollow growth catalyst on Hollow Reigai.
The principle behind the fungus-type Hollow catalyst was utilizing the Hollow trait of devouring their own kind. The high-concentration of Hollow spirit particles in the catalyst, made from the fungus-type Hollow, was so effective that its absorption by a Hollow Reigai was even more potent than it directly devouring a complete Hollow.
"So the powers of Shinigami and Hollow really can influence each other... The secrets within are truly fascinating," Sōsuke Aizen said, recording the results. He paused, then added, "Professor, do you think this spiritual body growth agent could work on a normal Shinigami?"
Aizen inevitably thought that since the growth agent was effective on Shinigami Reigai, it meant it was highly likely to be effective on Shinigami as well.
"Miyamoto Tetsuya already experimented on his own body," Sora said, taking out a pile of documents from his spirit particle space pocket. "When Miyamoto Tetsuya was still in the Soul Society, he was only a lieutenant. Although he was missing for a long time, and a natural breakthrough to captain-level isn't impossible, I found records in his lab of him using the spiritual body growth agent on himself."
"There's too much data. Yoruichi will send a backup copy of the files the Onmitsukidō took in two days. For now, let's focus on organizing Miyamoto Tetsuya's research," Sora said, searching through the pile of documents for a long time before finally finding what he was looking for.
"Miyamoto Tetsuya relied on the spiritual body growth agent to raise his Spiritual Pressure to the captain level!" Aizen was very surprised. The agent's effect was even better than he had anticipated.
"Yes. Miyamoto Tetsuya had already hit a bottleneck before this, and his Spiritual Pressure had been unable to break through to the captain level for a long time. That's why he took the risk of using this method to increase his own Spiritual Pressure."
Miyamoto Tetsuya was highly skilled and daring. The combination of Shinigami and Hollow was an extremely dangerous matter, with significant unknown risks.
Sora continued, "However, this method is risky. It causes Hollow spirit particles to accumulate in one's own spiritual body. Although the Hollow power in this human-faced Hollow's blood appears very mild, these accumulated spirit particles could suddenly erupt at some point."
"Miyamoto Tetsuya's experiment logs also state that after undergoing this enhancement, other voices would always appear in his mind. He often needed to rely on drugs to suppress his inner impulses and maintain his sanity."
Sora felt that Miyamoto Tetsuya could have undergone Hollowfication at any moment.
---
Special Announcement: Tomorrow, a free file with chapters 141 to 300 of Naruto: Saving the Uchiha will be uploaded, along with another file for I Have Caught a Pokémon from chapter 300 to 450!
-------------------------------------
Featured projects:
Bleach Getting Stronger, Starting from Teaching 300 chapters
Naruto: Saving the Uchiha 300 chapters
The Crime Value System 120 chapters
I Have Caught a Pokémon — 350 chapters
Goddess Training Manual — 800 chapters
Second Generation Villain (Revised Version) — 90 chapters
Detective Conan Fanfic — 380 chapters
The Heroine Wants to Join My Harem — 1050 chapters
I Am the Villain's Father — 400 chapters
----------------------------------------------------------------
👉 Join and support these projects at: patreon.com/LEYI396
— Don't miss a single chapter or any manga translation done on demand!