With his Zanpakuto sheathed at his waist, Ailin sat before his desk. Then, he placed a hand on the hilt at his waist and closed his eyes.
"Synchronization, begin—"
Streams of blue spiritual power patterns spread from Ailin's clone's hand toward the Zanpakuto at his waist.
In just a few breaths, Ailin completed synchronization with the Zanpakuto in his hand.
"Empathize Growth Experience..."
As Ailin murmured, the memories within the Zanpakuto flowed into his mind.
That was right. The Zanpakuto Kyoka Suigetsu currently hanging at Ailin's waist was not the one Ailin had copied and forged within Unlimited Blade Works.
It was the real Kyoka Suigetsu that belonged to Aizen Sosuke.
After defeating Aizen in Unlimited Blade Works and sealing him atop Sword Hill, Ailin had taken Aizen's Zanpakuto and handed it to his clone.
Only after fully absorbing and digesting all the memories within Kyoka Suigetsu did Ailin open his eyes.
"I never expected Aizen Sosuke to have already progressed this far..."
From Kyoka Suigetsu's memories, Ailin learned that Aizen had already completed his arrangements in Hueco Mundo.
Although the Hogyoku had brought Aizen's spiritual pressure to the limits of a Shinigami, he believed that the Hogyoku he had created was incomplete because he had only completed the Shinigamification of Hollows and had yet to complete the Hollowfication Experiment on Shinigami.
If he used the current Hogyoku to break through the limits of a Shinigami, it might greatly damage his future potential.
Thus, Aizen had recently devoted most of his attention to the Hollowfication Experiment on Shinigami.
Over the years, Aizen had sent nearly a hundred self-aware Gillian-class Menos into Soul Society, having them attack Shinigami and take over their bodies in order to observe the secrets of Shinigami Hollowfication.
Among them was someone familiar from Ailin's memories.
The