Central Underground Great Prison.
Eighth Level, Mugen.
No light source could be seen in the deep, dark space, as though the very law of light had been stripped away. Even releasing spiritual pressure was not enough to completely illuminate the surroundings.
This was not Su Feng's first time in Mugen.
Since becoming Captain of the Ninth Division, aside from imprisoning Kenpachi Zaraki in Mugen, he had also locked away many criminals such as noble clan members and Rebel Army leaders.
At first, Su Feng had held some doubts about the existence of the Central Underground Great Prison.
But after witnessing Shinigami who had returned from Hell, he had completely dismissed such thoughts.
Those with Third-Class Spiritual Might or above could not die easily.
The death of any Shinigami or Menos with Third-Class Spiritual Might would add another weight to the scales balancing Hell and the Three Worlds.
Perhaps the death of one being with Third-Class Spiritual Might was nothing significant, but accumulated over time, it would be enough to shatter that fragile balance.
Like Arturo Plateado. According to Mayuri Kurotsuchi's calculations and interrogation, Arturo's death had been the trigger that brought the original Captains back from Hell.
And that was precisely why the Central Underground Great Prison needed to exist.
Through his subtle perception, Su Feng sensed that Mugen was vast and boundless, as if it had no end.
Compared to before, Mugen had become much livelier. It was no longer occupied by only a handful of Shinigami, and that was one of Su Feng's contributions.
"As expected of the man who can please me."
Retsu Unohana followed closely behind Su Feng, her gentle voice echoing through the empty surroundings.
"What a satisfying battlefield!"
Though he could not see her expression, Su Feng was certain that her lovely face wore