Although he had experienced continuous hard battles, Asta's voice was still full of vigor.
And the first thing Asta saw was naturally Lucius.
"As expected, you're definitely not the Magic Emperor!"
Saying this, Asta raised the Demon-Slayer Sword and was about to charge forward, but was blocked by Charles who appeared in front of him.
"Although I don't mind letting you have the opponent, you have more important things to do right now, don't you!"
Asta gritted his teeth. He also understood this wasn't the time for acting on impulse.
Up to now, three gates of the underworld had already opened. If this continued, even higher-level devils would emerge, and at that time Yami and Vangeance would also lose their lives.
So Asta looked at the small black figure sitting on his shoulder - that was Liebe, the devil who had once been in his grimoire.
After contracting with Asta, his power had flowed into Asta's body, so normally he could only move around in this miniature form.
Liebe looked at Charles - it was this guy who made Asta and himself exchange memories. He really wanted to properly question why the other party had given Asta such a thing.
During the previous special training, Asta had used the method Nacht provided to make Liebe manifest from the grimoire into the present world.
From the start, Liebe had refused Asta's suggestion to communicate, then began fighting him to seize control of Asta's body.
Liebe thought he understood Asta well enough, so he didn't think he would lose.
After all, Asta had no magic power in his body and couldn't use magic. His only anti-magic was brought by himself, so Asta, who could only train his physical body, shouldn't have any possibility of victory.
However, in reality he didn't understand Asta well enough. Otherwise, he should have known that Asta was definitely not just a boy who couldn't use magic.
So Liebe lost. What made him even more embarrassed was that during the battle, somehow their souls seemed to have fused together.
Those memories of Asta that he knew and didn't know played scene by scene in his mind, and he could even experience Asta's feelings at the time.
Then he discovered the same thing had happened on Asta's side.
This feeling of having his past completely exposed to someone else, even his deepest thoughts revealed, was truly too shameful.
Asta had always been consistent in his words and actions, but Liebe felt like dying.
Until even the parts of Asta's memories that he himself had forgotten were revealed in both their minds.
That was the tearful face of Liebe's foster mother Richita - she was also Asta's mother.
The effect of Charles's magic tool even exceeded Charles's imagination. With the exchange of memories as a starting point, the two quickly achieved mutual understanding and then completed their devil assimilation training.
Liebe glared at Charles viciously again. Honestly, he was very grateful to Charles, because thanks to Charles he could learn about the relationship between Asta and Richita, and because of this he could have new family.
But being annoyed was still being annoyed - he could remember that feeling of being stripped naked for a lifetime.
Charles saw Liebe's expression and understood his thoughts, so he gave him a "friendly" smile.
If Asta hadn't already started moving, Liebe would have jumped up to tear apart Charles's face with that detestable smile.
Finally cutting with unwillingness, Liebe merged into Asta's body, activating anti-magic devil assimilation.
"Cool! But why haven't you grown taller at all!" Charles said this.
Hearing the first half, Asta was happy for a moment, but the second half directly hit his weak point.
Honestly, compared to the Dark Triad's devil assimilation, Asta's appearance was much more pleasing to look at.
Asta in devil assimilation didn't deviate much from human form, just wearing armor that was mainly black with red markings.
Besides his previous two curved horns, he grew two more horns on his head, his pupils became black and red cross-shaped pupils.
The teeth in his mouth also became sharp, black devil wings spread behind him, and a slender tail extended from the end of his spine.
The five-leaf clover grimoire flipped open as Asta reached out to grab the sword hilt emerging from the pages, drawing out the Demon-Destroyer Sword that had been dyed pitch black by anti-magic power.
Asta just swung the Demon-Destroyer Sword through the air, and the time spheres accelerating the Tree of Qliphoth advent ritual shattered.
Then Asta dove toward Yami and Vangeance below.
Charles watched Lucius with full vigilance, but surprisingly, Lucius showed no intention of interfering with Asta.
On the contrary, he showed a satisfied smile on his face.
Hum!
A low sound rang out, the air in the entire space distorted slightly, and everyone was firmly suppressed by the suddenly increased pressure.
Charles turned to look and saw those black tree root-like objects suddenly proliferate a large amount of bodily tissue.
Those flesh masses madly devoured everything - all the devils that had rushed out after the underworld gates opened were absorbed into them.
Rocks, soil, even the magic power in the air was devoured as nourishment for proliferation, quickly becoming a massive hideous monster.
Nacht entered devil assimilation state before he could crawl up while bearing the suddenly increased gravity.
"Damn, this is Lucifero's power. He's going to use the Tree of Qliphoth as a vessel to manifest in the present world."
Everyone in the Black Bulls base output all their magic power before the base could move again, taking everyone away to avoid being devoured by those flesh masses.
Those disgusting bodily tissues writhed as the massive monster let out a deafening roar.
Charles also flew outside, coldly watching this monster emit despairing magic power.
Lucifero - the highest-level devil from the deepest level of the underworld, possessing the strongest magic power in this world as well as magic power that controls gravity.
Additionally, as the Devil King, he also had the ability to forcibly dominate other devils.
Richita had been killed by Liebe under his control, and it was because Liebe couldn't break free from the control himself that Richita had sealed him in the five-leaf clover grimoire.
And now he was controlling all devils that had already come to the present world plus the Tree of Qliphoth, using this to descend to the present world before the corresponding underworld gate had opened.
Stella descended from the sky, coming to Charles's side, "Charles, that guy is really bad news! We should quickly deal with him!"
Charles smiled bitterly and began thinking whether this was the backlash from interfering too much.
Clearly the previous battles had gone quite smoothly, but unexpectedly an accident occurred at the end.
In the original plot, Lucifero had only used devils from the first and second levels as vessels for possession, but now devils from the third level had also been swallowed.
In the original plot, Lucifero had sent over half his magic power, but this time it looked like over sixty percent of his power had already descended.
A black line swept over - that was Asta imitating Yami's magic and striking with the Demon-Slasher Blade transformed from the katana Yami had given him, gripped with both hands.
That massive monster was cleanly cut in half, and Yami and Vangeance also broke free from their bonds and fell down.
But Charles didn't feel relieved, because Lucifero's massive magic power was beginning to condense.
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