In death god's view of the world, there were two extremely special powers.
Death god's hollow transformation, and hollow's death god transformation!
The former was death god wearing hollow's mask, breaking the inherent restrictions in his body, completely indulging his instinctive desire to kill, losing his heart as a' person ', thus obtaining a powerful power similar to hollow's.
The latter was hollow breaking the mask on his face, regaining the lost 'heart', filling up the hole left behind by hollow's transformation, and then using the method of sealing the spirit core into sword, obtaining power similar to death god.
Death god and hollow were like two sides of Yin and Yang.
They stood against each other and kept each other in check, but at the same time, they were also important factors to break the other side's boundaries!
The Arrancar was the symbol of Great hollow's evolution after breaking the boundary!
If we want to completely understand the meaning of Arrancar, we first have to sort out the evolutionary process of Great hollow.
The evolution process of Great hollow had always been accompanied by fear!
From the moment hollow, whose soul had fallen after the death of a human, had been devoured by a hundred ordinary hollow and fused with each other, the great hollow, who possessed a huge amount of Spiritual Power and lacked an individual consciousness, would be born.
And among these hundreds of Gillian who had no individual consciousness, a special Gillian with an individual consciousness would be born. It needed to devour hundreds of its own kind before it could evolve into the second stage of Great hollow - Adjuchas!
When it reached this stage, Adjuchas would always face the great threat of degenerating again.
Once the mask was swallowed by other hollow, Adjuchas would completely stop evolving and gradually degenerate to Gillian who had lost all intelligence.
Therefore, they could only continuously devour their own kind and increase their strength at the same time, ensuring that they would not return to Gillian.
After countless slaughters and devouring, there will be a very small number of Adjuchas who will successfully break through the boundary and reach the ultimate apex Vasto Lorde!
The most obvious feature of Vasto Lorde was that he was close to the size of a human and had an extremely high IQ. Moreover, he no longer needed to rely on hunting to evolve, nor did he need to worry about the threat of degeneration. Every single individual had a powerful combat strength that far exceeded that of a captain.
However, this was not the end of Great hollow's path of evolution. There was a new power above Vasto Lorde, and that was 'Arrancar'!
When the great hollow was able to regain the lost 'heart' and break the mask on his face, he would automatically seal the core of the power into the style of zanpakuto, and then obtain the power of death god. This process was known as the Arrancar!
In other words.
The first condition to break through was that it had to be Great hollow, who was at the Vasto Lorde level.
Looking at the whole chapter of Bleach...
The real confirmed and no doubts, independently evolved Arrancar, is only Coyote Starrk alone!
All the remaining Vasto Lorde managed to get to Arrancar level with the help of Aizen's Hōgyoku.
The only one who can be called a controversial Ulquiorra, there is no detailed description in the original work that it is self-Arrancar, which is inferred based on clues and there is no solid evidence, so it is temporarily shelved.
Just the tough requirement of the Arrancar was enough to make Lod stop.
So, under normal circumstances, it was basically impossible to make Grimmjow and Gwen Arrancar.
But it was different now!
From [Aizen experimental notes(Remnant 2) ], Lod finally found the record of 'Mask breaking'.
Firstly, he had to give Adjuchas a strong emotional stimulation, and secondly, he had to use a special Spiritual Power frequency to guide him. With the power of 'Hōgyoku', he could complete the Arrancar transformation!
Although there was no Hōgyoku yet, the power of the Reality Stone should be able to replace it!
Therefore, he only needed to find the strong emotional stimulation, and find the special Spiritual Power frequency wave section to complete!
Speaking of which, I have to thank Aizen.
If Aizen did not use Hōgyoku to find another way and found the correct method of Arrancar through countless experiments, I am afraid that he has no way until now.
"Let's start."
Lod thought in his heart, collected his divergent thinking and walked step by step to Abyss of Despair.
"Roar! Roar! Roar! Roar! Roar!"
Hundreds of hollow Gillian were trapped in the abyss. On the white masks that looked like clowns, their scarlet eyes flashed with a violent aura, and their gaping mouths let out shrill howls.
Boom! Boom! Boom!!!
The ominous and chaotic Spiritual Power, accompanied by an evil howl, turned into a huge pillar of air and crashed into the clouds.
They seemed to feel the impending threat and twisted their huge bodies uneasily.
"So noisy!" Grimmjow was irritated by the noise and rushed forward, directly rushing to the front of this group of big hollow. His blue eyes were cold. "All of you shut up!"
Adjuchas had almost absolute control over Gillian, who was a level lower and had no intelligence. This was both a physiological suppression and an evolutionary suppression.
Sure enough.
After this roar, the Gillians quieted down.
Lod said lightly, "Alright, Grimmjow, step back."
Grimmjow looked at Lod and surprisingly did not refute, but obediently retreated.
Lod stepped on the stairs formed by Reishi and came to the bottom of Abyss of Despair. His eyes swept over the surrounding Gillian and found that there was no existence of consciousness.
This was normal.
After all, Gillian, who had an individual consciousness, was a rare existence.
"Sure enough, it is not so easy to meet." Lod shook his head slightly disappointed. Since there was no potential for evolution, there was no need to worry about so much.
Although the Arrancar was simplified by Aizen's trick, there was still a minimum, and it had to be the first level of Adjuchas.
It was naturally impossible to do it in a normal way.
The conditions for the birth of Adjuchas were extremely harsh. Up until now, there were only two of them. He couldn't possibly use Gwen and Grimmjow for an experiment, right?
Therefore, he could only change the method.
Use the power of the Reality Stone to forcibly 'catalyze' a batch of Achucas-level Great Hollow.
Although this type of Adjuchas that had been forcefully 'catalyzed' did not have an individual consciousness and did not possess sufficient combat strength, it was still barely enough to be used as an experimental product!
Lod held the flowing sticky substance and communicated with the will of the red gem with his consciousness. "I want... to turn them into Adjuchas."
Buzz ---
The gem shook slightly, as if it were forresponding to his will.
A blood-red, demonic red light flowed out from between his fingers in an instant, covering the entire Abyss of Despair!
Some sort of rule power in the entire universe seemed to be stirred by the red gem at this moment.
All of Gillian, who was enveloped by the demonic red light, let out miserable screams. His huge body was constantly being compressed, and the majestic Spiritual Power was also being compressed.