Hitsugaya's expression was so grave it looked as though water might drip from it.
Not only because this Spiritual Pressure was already comparable to Captain-level.
But also because of its humanoid appearance.
Shinigami didn't believe that the larger a Hollow was, the stronger it was. That only held true for Hollows below the level of a Menos.
Once a Hollow broke through into the ranks of the Menos, its strength and size became inversely proportional.
The closer a Hollow came to a human form, the more terrifying its strength became.
And a Hollow whose appearance was indistinguishable from a human's—
A bead of nervous sweat slid down Tōshirō Hitsugaya's temple as he thought of a terrifying possibility.
With what he knew, he was well aware that a Hollow said to be indistinguishable from a human was called a Vasto—
An exceptionally powerful Menos that surpassed Captain-level Shinigami.
"It can't be, can it?"
Tōshirō Hitsugaya had also fought a Captain before, so he knew how terrifying Captain-level strength was.
Although the humanoid Hollow before him had an appallingly powerful Spiritual Pressure, it didn't seem to exceed that level.
On the other side, Nara Dan had also recognized the Hollow.
'White Hollow.'
'An exceptionally powerful Menos created from a Shinigami's soul combined with the power of the Hōgyoku.'
'It has Above Captain-level strength.'
It was also the culprit who would later leave Isshin Shiba gravely wounded and even strip him of his Shinigami powers.
It was also the source of Hollow power that would later merge with Ichigo Kurosaki and become one of his trump cards.
Nara Dan knew full well that Aizen was up to something again.
'He even sent out White Hollow.'
'But...'
'White Hollow doesn't seem to have reached its peak strength yet.'
In Nara Dan's perception, White Hollow's