Cheol-min laughed as he watched the man approaching him. He was none other than the most pathetic of his father’s executives.

  That man had always looked at Cheol-min with disdain. Yet, he was someone who couldn't even do his job properly. When his father started the pyramid scheme business, the man had spouted all sorts of nonsense, only to seethe with jealousy once Cheol-min started showing results.

  The fact that such a man had come to stop him now was beyond hilarious.

  Of course, Cheol-min knew he wasn't exactly sane right now. The craving for violence was more intense than ever.

  Even for someone like him who loved beating people, he knew this was going too far.

  But what did it matter?

  Right now, Cheol-min was invincible. No matter how much he was hit, he recovered instantly. And his fists and feet could crush anything.

  There was nothing to fear. Since a man he had wanted to beat to death anyway had come to stop him, he just had to kill him.

  The lust for violence that governed him was now like a thirst that could never be quenched.

  However, he was bored with beating those who couldn't even resist. Thus, Cheol-min was glad that someone actually worth hitting had appeared.

  There was no need for words. That bastard didn't look normal either.

  So, instead of a long conversation, Cheol-min simply sprinted.

  He swung his fist—a blow powerful enough to crush a car. An ordinary person would have collapsed instantly.

  He didn't pull his punches. With pure murderous intent, Cheol-min swung directly for the man's head.

  The sensation of a solid hit vibrated through his hand. It hurt quite a bit, but the recovery was instantaneous. Without hesitation, Cheol-min swung again.

  But there was no second strike.

  "W-what?"

  Cheol-min was stunned. Before he knew it, he was staring up at the ceiling. But that wasn't all.

  His back ached. His vision had shifted in an instant; it seemed he had been taken down by a shoulder throw.

  "Urgh!"

  His whole body tingled. Never expecting to be caught by a counter-technique, Cheol-min felt absurdly blindsided.

  But this was what made a fight worth it. With that thought, he looked at his opponent.

  In that moment, despite the overflowing urge for violence, Cheol-min lost his words.

  The face of the man he had just struck was not something one could look at head-on. Yet, that face was slowly regenerating.

  "Damn it!"

  With a voice full of rage, Cheol-min swung his fist once more. This time, his opponent counterattacked.

  Their fists struck each other’s heads simultaneously and accurately. Cheol-min felt his vision go white.

  But the fight was only beginning.

  Jihyeon arrived at the scene just in time. After concealing himself perfectly so that no one could find his position, he watched the struggle.

  And Jihyeon felt it. This was a fight he could not intervene in.

  It was the recreation of a myth itself. A battle where a mere mortal could do nothing but watch and sigh.

  Jihyeon never imagined he would witness such a fight. However, looking at the surrounding destruction, this was a battle that would be talked about for years to come.

  The area was already completely devastated. Yet, the two continued their combat.

  Cheol-min and his opponent wielded strength far beyond human limits against each other. If it weren't for their regenerative abilities, one of them would have died long ago.

  But neither side cared about that.

  Whatever they could grab became a weapon. A passenger car was a convenient club to swing, and a building was a tool to inflict pain on the opponent.

  However, in Jihyeon's eyes, the outcome was gradually becoming clear. Cheol-min was losing.

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  He certainly raged like a berserker out of legend. His fists shattered the asphalt road and pulverized concrete walls.

  But because Cheol-min had surrendered his body to rage, the accuracy of his attacks dropped infinitely. His opponent was different.

  Though possessing equal power, the opponent used it with restraint, minimizing damage while breaking the other down. The movements were like watching an AI perfected for a fighting game.

  Jihyeon felt a chill at the sight. The way the figure moved, clearly knowing its strengths and limits, felt like a non-human entity.

  But that was likely why he could take Cheol-min down. If Jihyeon were to fight Cheol-min, he would have to fight knowing that a mere graze could mean death.

  Basing his fight on nearly infinite regeneration, Cheol-min’s opponent gradually dismantled him.

  Eventually, Cheol-min's limbs became tangled and his movements slowed. After rampaging and smashing everything in sight, Cheol-min was slammed into the ground repeatedly, stumbling and swaying.

  The limit had arrived.

  With an expressionless face, Cheol-min’s opponent slowly suppressed him. Though the opponent's body was covered in blue bruises where he held Cheol-min's limbs, he didn't care.

  Feeling a shiver at the sight, Jihyeon tried to obtain information about the opponent, but nothing came up.

  A data firewall unique to those who possess tools.

  While he lamented before that barrier, a new figure appeared along with his subordinates. Jihyeon began to observe them cautiously.

  The Big Boss’s expression was dark. It was because he knew that what he was about to do was no different from killing his beloved son.

  But he had no choice.

  There was simply no other way for his son now. It was better to save him like this than to let him die.

  Gritting his teeth, he approached his son to do what had to be done.

  The executive who had been used as a test subject had fought in exchange for his past failures. And he had brilliantly suppressed the son.

  Of course, his body was riddled with injuries that would have killed a normal human long ago, but he was nearly fully recovered now.

  A tool just like his son's.

  And a result just like his son's.

  It was ridiculous. The Big Boss let out a sigh. Perhaps this was the price for making a deal he should never have made.

  But the die was cast. Regret was meaningless.

  "Cheol-min..."

  The Big Boss called his son’s name in a low voice. The son raised his head as if reacting to it.

  "I'm sorry."

  The Big Boss said this and lifted the box he had brought. Immediately, Cheol-min moved his body violently.

  It seemed Cheol-min realized what was about to happen. Though he had never been taught about it, those who used tools seemed to instinctively sense what this was.

  One could tell by the fact that even the other tool-wielders standing near the Big Boss were filled with terror.

  But that didn't matter. What mattered was that he had to use this on his son, and that his son would never again show a human reaction to his voice.

  Yet, if he didn't do this, his own head would be next. So, the Big Boss activated the box he held.

  With a flash, everything came to an end.

  Fear.

  Jihyeon felt a fear he had never experienced before. He felt that the object the man in front of Cheol-min held was something he must never approach.

  Not approaching had been a wise choice.

  If he had been nearby, he would have been affected by that object. If that happened, the human known as Jihyeon would no longer exist.

  That was an object capable of dominating those who possess tools.

  Of course, its performance had limits. It could only be used when the opponent was suppressed at very close range.

  It was likely a control device, a sort of last resort.

  As long as he wasn't careless, there was little chance of being caught by such a thing. However, the mere fact that the possibility existed filled Jihyeon with an uncontrollable anxiety.

  The slightest possibility makes one uneasy.

  Jihyeon knew his own weaknesses well. That object was stimulating those weaknesses even further.

  "What a mess..."

  Jihyeon muttered to himself, as if trying to force the anxiety away. Of course, the anxiety didn't disappear.

  But if it wasn't an immediate threat, he shouldn't just be cowering.

  Rather, this incident was a good opportunity. Jihyeon knew well that it was a chance to examine the characteristics of an object that could be his most fatal weakness.

  Thus, Jihyeon made up his mind to use all of his abilities and focused his mind.

  In an instant, everything about the man called the Big Boss entered his mind. Since he was determined, it was a significant burden on Jihyeon, but he gained much in return.

  "Haha. So that's how it is?"

  Jihyeon smiled, ignoring the nosebleed that broke out. If someone had seen him, they might have worried, but that wasn't important.

  "That's an unexpectedly interesting safety device..."

  If what the Big Boss knew was true, that object was something those with tools like Jihyeon could not use.

  It was a control device only for those without tools. In a sense, it was an object like a final hope.

  That fact made Jihyeon feel a bit more at ease. At least he felt he wouldn't lose track of the person holding it.

  Nevertheless, Jihyeon watched with fear as the object was activated.

  The Big Boss raised the object toward the head of his son, Cheol-min. Outwardly, it looked like an ordinary box, but where the Big Boss's fingers touched, a circle of light—expanding like a wave—appeared and disappeared.

  The movement was irregular, looking almost as if it represented the Big Boss’s will.

  A moment later, a light like lightning erupted from the tool that suppresses tool-wielders.

  It was a speed that could never have been used if someone hadn't already suppressed Cheol-min. Cheol-min seemed to sense that he was about to lose his reason, turning his head in an attempt to escape his fate.

  But the moment the light struck his head like a lightning bolt, it was over.

  In just a single moment.

  With that, the physical body of the man who had been Cheol-min collapsed.

  "Get up."

  The Big Boss commanded his son in a heavy, sad voice, as if he had tasted the end of his life.

  And Cheol-min rose to his feet with a movement devoid of any will. He no longer felt like the rampaging disaster he had been.

  "Let's go home."

  The Big Boss said this and turned around. Cheol-min followed behind him like a robot.

  Jihyeon sighed as he watched them. A chill ran down his spine at the thought that his own fate could end up like that.

  But even scarier than that were the people who had distributed such tools.

  With what kind of malice had they begun to release such terrifying objects?

  Amidst the unbearable sense of dread, Jihyeon slowly rose from his hiding spot.

  Everything he needed to do here was finished. There was no reason to stay any longer. He would simply hide among the crowd and go home.