"Unlimited Void."
Whoosh—!
To the onlookers, a black sphere rapidly expanded from Kael as the epicenter. In an instant, it formed a pitch-black barrier over a hundred meters in diameter.
"What… what is that?!"
Even without knowing what it was, the sheer mystery of the object radiated a lethal sense of danger.
"That thing isn't going to explode, is it?!"
Everyone felt a lingering fear toward the spherical techniques Kael unleashed.
The blue sphere, Blue, could attract all things, grinding them to dust with gravitational force.
The red sphere, Red, could repel all things, shattering them with powerful repulsion.
The purple sphere, Hollow Purple, formed by merging the two, destroyed everything it touched—that was how the palace had been erased.
And now, a massive black sphere had appeared.
If something that large exploded, it would be enough to send the entire Royal Capital into the sky.
"What is that?!"
Carla asked, her voice trembling with confusion.
"I don't know! Kael only used it once before when he fought Jellal. Right after that, Jellal was defeated."
None of them were sure. They hadn't seen Kael in this state many times, and even "Hollow Purple" was a first for them.
But seeing Kael use this move now, based on what they knew of him, it was definitely even more dangerous than "Hollow Purple."
At that moment, inside the domain.
King Faust stood frozen.
"What happened? What is this? I can't see anything, I can't feel anything—no, I can see everything!! I can feel everything!! What the hell is going on?!!!"
"You might be Mystogan's father, but if you dare provoke Fairy Tail, you'd better be prepared to pay the price."
Kael wasn't about to waive the punishment just because the man was someone's father. Everyone in Fairy Tail, including Mirajane, had faced a genuine threat to their lives. Kael himself might have been absorbed if not for his System. That was why his actions were so decisive, showing no mercy. In fact, if Mystogan hadn't arrived, he would have wiped this kingdom off the face of the earth to ensure nothing like this ever happened again.
"For the rest of your days, you can live as a complete vegetable!"
Whoosh—!
The outer wall of the domain slowly faded and vanished, and Kael's figure reappeared.
BOOM—!!
The mechanical dragon crashed into the ground, motionless.
"This is..."
"Could His Majesty be... dead?!"
The soldiers stared at the scene in horror. Only ten seconds had passed since that giant sphere appeared, and now the King was completely unresponsive. The most likely conclusion was that he had been killed.
"Kael... my father..."
Mystogan didn't understand the current situation. His father had tried to kill him with his own hands, but he was still his father.
"He's not dead, but he's not exactly alive either."
"What does that mean?"
"I turned him into an idiot."
"An idiot? What kind of idiot?"
Kael pointed to his own head. "I mean it in the literal sense."
This time, Mystogan understood. Normally, people used "idiot" as an insult, but Kael had turned his father into a vegetable in the physical sense. He knew Kael's magic was dangerous, but he hadn't realized it was this extreme. Still, for his father, this was probably the best possible outcome.
"Kael!!"
Natsu and the others ran over. Facing the dense fire from the army had left them all with various injuries. If the battle had continued, their lives would have been at risk, which was one of the reasons Kael had cleared the field.
"Kael, what was that move just now?! It looked incredible!"
Natsu asked with wide-eyed curiosity. The others also looked at Kael intently, wanting to know what that technique was.
"That is my Domain: Unlimited Void. It's a space constructed by consuming a massive amount of Cursed Energy. It is the inner side of Infinity. Anyone dragged inside is forced by their own brain to undergo endless, repetitive cycles of 'perception' and 'transmission' just to stay 'alive.' It generates a massive flood of useless information, causing the brain to lose all function. They can only stand there and wait for death. Only I and anyone I'm touching are immune to the effects."
"That's... that's terrifying!!"
Natsu and the others were startled. They knew the move was dangerous, but they hadn't expected it to be that gruesome.
"So what about the King? What happened to him?"
"0.2 seconds in Unlimited Void can cram about six months' worth of useless information into a living being's brain. That's enough to paralyze a Wizard Saint for over five minutes, or a normal person for two months."
"So just now, it was ten seconds in total... Happy, help me out. How long is that?"
Natsu started counting on his fingers but couldn't keep up.
Gajeel scoffed in disdain. "Idiot! Salamander, if 0.2 seconds is half a year of information, then 1 second is two and a half years. Ten seconds means twenty-five years of useless information. That would paralyze a Wizard Saint for over four hours, and a normal person for eight years."
After finishing the calculation, Gajeel couldn't help but let a flicker of fear show in his eyes.
He felt a chill of lingering fear. If, during the battle between Fairy Tail and Phantom Lord...
If Kael had used that move back then, it would have been too horrific. If even a Wizard Saint would be paralyzed for four hours, he would have been out for ten days or even half a month.
"What—?!!"
Everyone was terrified by the realization. Paralyzing a Wizard Saint for four hours and a normal person for eight years—it was simply too monstrous.
Kael shook his head. "It's not calculated that way."
The group thought perhaps the attack wasn't actually that strong and were about to sigh in relief when Kael continued:
"Unlimited Void ignores physical defense and attacks the brain directly, causing an extreme overload. If the brain damage exceeds a certain threshold, it causes brain death. The brain is the seat of our soul and the center for using magic. If it's damaged like this, whether he can ever use magic again is a major question. I'm not even sure how deep the permanent impact will be."
"..."
Their bodies shivered. They finally realized they had completely underestimated the danger of Kael's magic. It wasn't just a matter of how long someone was paralyzed—it was a question of whether they could ever be a mage again.
Natsu and Wendy knew exactly how powerless they felt without magic. Reverting from a mage to a normal person was an agonizing thought.
Wendy sighed in relief. "It's finally over!"
This was her first official battle. she had been scared out of her wits, but the thought of everyone in the guild being turned into Lacrima gave her the courage to fight.
"Yeah! It's finally over! We actually defeated a whole kingdom! It's unbelievable!"
Lucy also relaxed. Fighting an entire kingdom had put her under immense pressure. She hadn't known what to do, but seeing everyone else charge in, she had followed suit.
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