"Devil Union!"
Asta and Liebe spoke in unison, inside and out.
The latter began merging all his Anti-Magic into Asta's body.
Asta's form changed once more as surging black magic power shot into the sky.
The magic power spreading across the heavens gradually formed a terrifying demonic face.
It glared viciously down at the astonished Hashirama Senju.
"Whoa!"
"Is this the complete form of a devil host? His aura actually surged to such an extent!"
Honestly.
He felt that his former self—
The self from before he joined the World Government—would likely have struggled to suppress the current Asta.
As for the specifics, they would only know after fighting.
At any rate, judging solely by his aura, in the former Shinobi World, Asta was undoubtedly a powerhouse on par with himself and Madara.
At that moment.
Asta completed his transformation, holding the Demon-Slayer Sword in his left hand and gripping the Demon-Dweller Sword tightly in his right.
A pair of black demonic wings unfolded behind him, while two sharp demonic horns sprouted from his head.
His formerly red-and-green pupils had also become matching crimson eyes.
Most importantly, a black-and-red suit of armor now covered his entire body.
Even the air around him constantly crackled with black-and-red lightning.
It gave off quite the feeling of Conqueror's Haki.
However, this Devil Union form had a flaw.
Its duration was limited.
Two and a half years ago, this form could only last five minutes. Now, it had been extended to nearly half an hour.
Even so, that was still very short.
So Asta had to make every second count. Without another word, he charged straight at Hashirama Senju.
[BOOM!!]
Rings of sonic booms continuously formed as the air exploded, yet they could not catch up to the meteor-like black beam.
Hashirama Senju had