"Kyoka Suigetsu..."
Su Feng stroked his chin and repeated the name thoughtfully.
If he remembered correctly, after Aizen fused with the Hogyoku, his Zanpakuto also underwent a deeper fusion with him as that fusion progressed.
At first, his right hand had fused with the Zanpakuto.
Later, even after completely discarding the blade itself, he could still use Kyoka Suigetsu's ability.
In the original story, Yhwach had merely taken a trip to Mugen before Aizen directly caught him off guard with Kyoka Suigetsu's power.
When it came to unfathomable abilities, Aizen undoubtedly ranked first.
Yhwach suffering a setback now was well within expectations.
After all, even Yhwach, after "opening his eyes" and devouring the mutilated Soul King, would still suffer at Aizen's hands.
As for whether Aizen had reached that level, Su Feng did not know.
But one thing was certain: even if he had not yet fused to that extent, he could not be far from it.
"Let them keep each other occupied for now."
Su Feng thought, Right now, Hell is the priority.
"While there's time, I'll make a trip to the Gokuzai Family. The situation in Hell may be more serious than we imagined."
"Mm, Captain Kurotsuchi and Seinosuke should come with me."
"When it comes to technical terminology and the like, it's better to leave it to professionals."
He knew his own limits quite well. Fighting was no problem at all.
But once it involved scientific research, it was asking a bit much of him.
"Bring Kagerōza Inaba as well."
Mayuri Kurotsuchi suggested, "He is the Department of Research and Development's only expert on the Dangai. He has conducted extremely deep research into the connections between different worlds."
Su Feng nodded and agreed.
Before long, the group of four left the Department of Research and Development and