The Hueco Mundo expedition force was mainly composed of members of the 11th Division, along with several captains.
However, their actual objective was not to eradicate Aizen, but to locate him and report back.
When the time came, Captain-Commander Yamamoto might even make a trip to Hueco Mundo himself.
Of course, the most likely scenario was that all the captains of the 13th Division would be deployed.
For now, Sajin Komamura, Mayuri Kurotsuchi, Byakuya Kuchiki, and Retsu Unohana were present.
Four captains had been deployed, with Sajin Komamura taking Kenpachi Zaraki's place. After all, Kenpachi Zaraki was currently in the World of the Living acting as a Berserker.
Toshiro Hitsugaya had originally planned to come as well, to make up for the gap in their apparent Battle Power. The Battle Power Aizen had displayed was simply too formidable.
But for the sake of Hyōrinmaru's potential and future as the Soul Society's strongest ice-and-snow-type Zanpakuto, Toshiro Hitsugaya ultimately could not come.
As usual, the Hueco Mundo expedition force found no trace of Aizen. They had already lowered their guard, feeling that coming to Hueco Mundo was nothing more than eating sand.
Just then, an unusual aura spread through the air. Retsu Unohana, the Captain of the 4th Division, a Soul Reaper renowned for her gentleness yet unfathomable strength, abruptly stopped. Her eyebrows drew together slightly, as though she had caught some subtle change.
"Is this... killing intent?"
She murmured softly.
Unlike the Spiritual Pressure that could be clearly sensed before an ordinary battle, what she felt this time was a purer, more direct threat—killing intent. Like a blade in the dark of night, it drew silently closer.
Just as Retsu Unohana was about to warn her companions, a rift suddenly tore open across the sky. A deep crimson light, red as