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"Kurotsuchi Mayuri, that lunatic, was already conceiving artificial Shinigami a hundred years ago," Aozaki Reiji said, smacking his lips in admiration as he flipped through Mayuri's research notes.
"It's a pity that back then there was neither Gikon nor Gikai technology, so he had to start from scratch. It must have been difficult for him."
The basis of Gikon technology is Hikifune Kirio's temporary Souls technology, while Gikai technology has not been developed even now.
It was indeed very difficult for him to research such high-difficulty inventions and creations alone.
However, his research was not without any results.
Aozaki Reiji opened another notebook.
It recorded a technique, one that could completely cut off spiritual particles.
After carefully reading it, Aozaki Reiji seemed to realize something, exclaiming in sudden understanding, "No wonder this guy went to research Quincy!"
This technique was developed by studying the Quincy's ability to manipulate spiritual particles.
Manipulating spiritual particles to construct a stable spiritual particle membrane, isolating the interaction of spiritual particles inside and out.
This was a technique Mayuri accidentally developed, part of his research into artificial Shinigami bodies.
In his concept, this technique could prevent the Souls of artificial Shinigami from being too fragile, leading to the loss of Reiatsu and the disintegration of the Souls.
"Wait, cutting off Reiatsu!?"
Aozaki Reiji's pupils constricted, and he couldn't help but cry out in surprise.
He remembered something.
Ordinary Gikai are high-concentration spiritual particle bodies that can help Shinigami who have lost their power recover.
However, Urahara Kisuke's further developed new type of Gikai is a spiritual particle body that does not contain spiritual particles, and its function is completely opposite to that of ordinary Gikai.
Recalling what Aizen had said, that external Reiatsu would react with the Reiatsu of the Souls within the Hōgyoku, affecting the Hōgyoku's formation.
He couldn't help but have a terrifying guess.
It couldn't be that coincidental, that the spiritual particle isolation technique is the one needed to create the Hōgyoku, could it?
Aozaki Reiji closed his eyes, trying hard to recall his memories of "Bleach."
In his vague memory,
In the original timeline, Aizen did say that he didn't expect Urahara Kisuke's Hōgyoku to be so small.
From this, it can be inferred that Aizen's failed Hōgyoku should have been a big one.
Plus, before Aizen fused with the Hōgyoku, the Hōgyoku was always wrapped in a thin membrane.
He had to suspect that Urahara Kisuke used the spiritual particle isolation technique when developing the Hōgyoku.
Of course, these were all Reiji's guesses, and the actual result could only be known after conducting Hōgyoku experiments.
But now, the basic materials for making the Hōgyoku haven't even been gathered, and even a "coal ball" like Aizen's hasn't been made, so thinking about these things is useless.
He didn't even have the basis to try the technique at this time.
Aozaki Reiji gently stroked the notebook, blowing away the accumulated dust, and carefully put it into his embrace.
Looking around the entire underground laboratory, his eyes suddenly lit up.
Now, in his eyes, this was not a dilapidated laboratory that had been untouched for a hundred years, but a gleaming treasure trove!
"No, since Kurotsuchi Mayuri gave me all these things, I absolutely cannot waste them."
Aozaki Reiji acted immediately, using both hands to pick up two pieces of equipment and run towards Kagarashi District.
When he tried to create the Hōgyoku in Rukongai, to avoid attracting attention, he secretly built a secret room, hidden underground in the suburbs of Kagarashi District.
After the Hōgyoku experiment failed, he used this secret room to store the Souls he had collected.
He was ultimately uneasy leaving these good things in someone else's home.
So he decided to move all these things to his secret base, and anything he couldn't move, he would destroy directly.
This moving operation took a full half an hour.
If he hadn't thought of using "Bakudo #37: Tsuriboshi" to make a small hammock for transportation halfway through, this time would probably have been extended.
This was the deal between Aozaki Reiji and Kurotsuchi Mayuri.
Aozaki Reiji allowed Kurotsuchi Mayuri to regain the joy of life even in the Maggot's Nest and promised to return his freedom.
And Kurotsuchi Mayuri handed over everything he once owned to Reiji.
Reiji completely profited from this deal; not to mention the techniques he gained, they were very likely related to creating the Hōgyoku.
And the simple equipment Reiji prepared for Kurotsuchi Mayuri in the Maggot's Nest was simply trash compared to the equipment in this laboratory.
Although these pieces of equipment appeared bulky due to their age, they were more versatile and could perform more types of experiments.
He even wanted to restart his Hōgyoku experiment.
Aozaki Reiji slowly walked out of the secret room, the sun outside had long since risen in the east, casting a glow of morning clouds.
He had stayed in the secret room all night without sleep, yet he felt no fatigue, instead looking refreshed.
The surprise Kurotsuchi Mayuri gave him was simply too great, and he still hadn't calmed down.
After a while, Aozaki Reiji returned to Seireitei.
Urahara Kisuke spread his hands and yawned, "So why are you looking for me so early in the morning?"
"You seem very tired?"
"I stayed up all night yesterday researching protective suits. I was just catching up on sleep in the office, only dozed off for a bit, and then you called me out."
"Not sleeping at night and slacking off during the day, truly my external brain, even your living habits are the same as mine."
"Don't arbitrarily give me strange identities," Urahara Kisuke said, "I just found that my mind is more active at night, and it's easier to find inspiration."
"So you came to me just to trick me into becoming your external brain while my mind is confused?"
"Of course not." Aozaki Reiji waved his hand, "Actually, I have something else I need to ask of you today."
Upon hearing this, Urahara Kisuke's face was filled with black lines.
What kind of person did he take him for?
He comes to him when he needs something, and when he doesn't, he and Yoruichi gang up on him.
Who acts like that as a friend?
Was he being treated as a tool? Or was he part of their strange game?
Urahara Kisuke's eye twitched, and he gritted his teeth, asking, "What exactly is it?"
Aozaki Reiji patted his shoulder, calming him down and signaling him to wait patiently.
"It's Yoruichi. She came to find me last night, and she also mentioned Kukaku."
Hearing Aozaki Reiji mention both Yoruichi and Kukaku, Urahara Kisuke immediately curved his lips into a smile.
Because he was the instigator of everything; everything was within his plan.
Friends… even pranks should be reciprocated. That's what makes good friends.
"Let me guess, Yoruichi found out you were going to give Kukaku a protective suit, and then she got jealous."
Urahara Kisuke seemed to feel triumphant, saying spiritedly,
"She's looking for you all over the world right now, so you hid here with me?"
"No." Aozaki Reiji waved his hand.
Urahara Kisuke: "?"
"Yoruichi was indeed a bit unhappy, but after I promised to give her a gift, she ran off very excitedly."
Aozaki Reiji asked, puzzled,
"I don't know what's going on with her, but I always have to keep my promises, so I came to ask you to make a gift."
Upon hearing this, Urahara Kisuke couldn't understand Yoruichi's thought process either. After thinking for a moment without success, he could only ask, "What kind of gift?"
"A neck accessory, the kind Yoruichi usually wears. It's best if it can change size freely, and even better if it can transform into a weapon," Aozaki Reiji said enthusiastically.
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