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32 HxH: The Strongest Assassin

"Start!"

With the referee's signal, the match began.

In the blink of an eye, Kaizen's figure vanished from sight.

"Pfft!"

A strange, sharp sound echoed through the arena.

The young fighter's plan had been simple: hit Kaizen hard right from the start, give him a taste of real pain, and force him to beg for mercy. Then, once Kaizen surrendered, he'd continue tormenting him at his leisure—just for fun—before finally finishing him off.

But before he could e...

31 HxH: The Strongest Assassin

"Master Silva."

Shinji approached Silva quietly.

"What is it?" Silva asked, his tone calm but commanding.

"Master Kaizen called just now. He said he's arrived at Heavens Arena."

"I see."

With a small bow, Shinji left the courtyard. Even after all these years, Shinji couldn't help but feel a deep sense of awe toward Silva.

It wasn't just Silva's raw power that inspired this fear—it was the aura that radiated from him. Silva carried a presence that spoke of...

30 HxH: The Strongest Assassin

"This should be one of the most developed and vibrant places in the world."

Kaizen's eyes were drawn to a towering structure dominating the skyline— Heavens Arena.

The massive tower stood at 250 floors, far exceeding any other building around it. From the roof of the top floor, you could take in the entire city in a single breathtaking view.

Without hesitating further, Kaizen made his way toward the arena's gate.

Though most would dive right into battle upon arriving...

29 HxH: The Strongest Assassin

On the airship, Kaizen sat by the window, gazing at the distant white clouds. A green bird flew by, but a dark figure suddenly darted through the sky, colliding with the bird.

"Squeak?"

Before the bird could react, the shadow enveloped it, and it was gone. Kaizen turned away from the window, disinterested.

Suddenly, the airship grew noisy.

"Don't move!"

"Hand over all your money!"

Several masked figures appeared—one blocking the exit, another guarding the...

28 HxH: The Strongest Assassin

"Thank you, but there's no need. I know this mountain like the back of my hand."

"Alright then, just be careful."

"Yeah, I will."

The road down the mountain stretched long, and the bus rocked back and forth with each turn. Soon, the woman sitting beside Kaizen began to nod off, her eyes drooping shut.

Kaizen's own eyes were closed as well—but not because he was sleeping.

He was meditating.

The Nen techniques Kaizen had learned so far included Ten, Ren, Ze...

27 HxH: The Strongest Assassin

Zebro removed his coat, revealing his well-defined muscles.

He struck a fighting pose in front of the old man and the young man.

"Bring it on!"

The expressions of both the old man and the young man grew serious as they charged at him.

In the next moment, they were sent flying backward.

Kaizen watched, silent.

Of course, he knew that the old man and the young man were no match for Zebro. Though Zebro served as Mika's cleaner, he was still a member of the Zol...

26 HxH: The Strongest Assassin

Soon, Kaizen left the butler's area and ventured into the outer jungle.

"Huff!"

Kaizen let out a long breath, feeling the weight of his recent encounters.

"Almost lost it there," he thought. "Nen is really something else. No matter who you're up against, you can't afford to take things lightly."

He acknowledged that he had let his guard down during his fight with the third butler. The victories in the first two rounds had lulled him into a false sense of security. When...

25 HxH: The Strongest Assassin

The strength of aura lies in the potential for abilities to evolve.

Potential is closely tied to intelligence.

Two fighters with the same level of aura—one intelligent, the other not—will almost always see the smarter fighter prevail. Even a weaker Nen user can leapfrog their opponent by using intelligence effectively.

It's just like Kurapika in the canon plot.

In raw power, Kurapika was no match for the Phantom Troupe back then. But Kurapika had knowledge—knowle...

24 HxH: The Strongest Assassin

In midair, Kaizen had no room to dodge.

After being hit twice in rapid succession, the young man collapsed to the ground, unable to continue fighting. His body was battered, and the severity of his injuries was clear.

Kaizen motioned for help from outside the ring.

Immediately, skilled attendants rushed in to provide treatment to the fallen youth.

Kaizen turned his gaze toward the other butlers standing by the arena.

"Next," he ordered calmly.

To be honest,...

23 HxH: The Strongest Assassin

This is the advantage of a Beast-type Specialist's Nen: overwhelming numbers.

Kaizen and Killer Queen were both on the battlefield at once, forcing the opponent into a disadvantageous fight against two enemies at the same time.

According to a rough assessment of Nen, both Kaizen and the young man facing him ranked around D-level.

But Kaizen's aura capacity surpassed what was typical for someone at that level.

Firstly, Kaizen had undergone grueling training since childh...

22 HxH: The Strongest Assassin

The Killer Queen had a peculiar ability—within its body existed a space where objects could be stored away.

Kaizen slipped the parchment into the invisible storage. It was now hidden, safe from prying eyes, accessible only to him. As the Killer Queen finished its task, its figure shimmered and vanished.

Sanghir had arrived.

When Sanghir first noticed Shinji, he faltered, unsure of how to act. But seeing the Zoldyck servant's attire, his expression changed to one of underst...

21 HxH: The Strongest Assassin

"Kaizen, choose one of these three."

Silva's voice was calm but carried a weight of expectation.

Kaizen gave a small nod and surveyed the three candidates standing before him. One of them looked eerily similar to Nobunaga from the Phantom Troupe.

That made Kaizen's decision easy. To him, all three were equally capable. The fact that they were chosen by Silva himself spoke volumes about their talent and reliability. Their presence here confirmed they could be trusted.

"...

20 HxH: The Strongest Assassin

A girl with long black hair, dressed in a sleek suit, held a sharp, slender blade.

Next to her stood a woman with flowing blonde hair and a soft, gentle demeanor.

A man with cold eyes, hidden beneath the brim of a hat, calmly raised his hand. The trigger clicked, and a gunshot echoed.

A powerful figure, muscular and pink like a seasoned boxer, flexed his strength.

Then, in an instant, all these figures were pulled into a crystal ball.

Boom!

A cracking sound...

19 HxH: The Strongest Assassin

Kaizen reflected on Silva's words, his mind sharp and focused.

In the original story, Hisoka told Bushidora that he'd gone down the wrong path. Though Bushidora was clearly an Enhancer by nature, he had developed an ability that was more aligned with a Transmuter's style.

(T/N: Bushidora Ambitious was a Single-Star Blacklist Hunter.)

Disappointed, Hisoka eliminated Bushidora on the spot.

This incident caused a lot of misunderstanding among those w...

18 HxH: The Strongest Assassin

"Me? I'd say… A-level."

Silva paused before responding.

"Kaizen, you haven't fully developed your aura yet, but your strength, fundamentals, and instincts are solid."

He leaned back slightly.

"And with how well you've integrated Nen into our Zoldyck assassination techniques, you're not far from D-rank already."

Silva gave a small nod. "Once you unlock the full potential of your aura, D-rank will be within reach."

Kaizen returned the nod. "Got it. Thanks, ...

17 HxH: The Strongest Assassin

"Over the centuries, the Zoldyck family has upheld two essential rules."

"First: the ability to assess an opponent's strength is more important than our own power."

"Before taking on a mission, or engaging in battle, it's crucial to investigate the opponent's abilities, limitations, and strategy thoroughly. Only with this knowledge can we determine the true nature of our opponent."

"This rule is paramount."

"Second: never engage in uncertain battles."

"We are ass...

16 HxH: The Strongest Assassin

"Have you decided what you want to do with your hair?"

"Not yet."

"Alright, then I won't use my abilities on it either. Let's head over to the training ground nearby."

"Sounds good."

The two walked off, side by side.

Tsubone and Gotoh followed quietly behind them.

It wasn't long before they reached the training area.

Kaizen stood facing Silva, tension hanging in the air.

"Ten!" Silva commanded, his aura sharpening like a blade.

Kaizen's ey...

15 HxH: The Strongest Assassin

The butlers stood in neat rows, all dressed in uniform—white shirts under crisp black suits.

"Condense!"

At Kaizen's command, two small orbs of aura gathered in front of his eyes, sharpening his vision. Since he had arrived at the Zoldyck estate, the speed at which the crystal ball absorbed new traits had increased dramatically.

Kaizen glanced toward the training ground, observing the sheer number of people practicing.

Hundreds of them.

It was impressive, and i...

14 HxH: The Strongest Assassin

"I see. Let's head down."

A shadowy figure dropped in front of Kaizen.

It was a dangerous cat-like beast—not just a regular wild animal, but a magical creature.

Compared to Mike, however, this one was weaker.

Even so, without Kaizen using aura, it was still hard to defeat. Zebro's worried expression confirmed that much.

Given that Zebro had enough strength to push open the Testing Gates, everyone knew to fear this creature.

No—it wasn't just fear. Again...

13 HxH: The Strongest Assassin

Zebro handed over the key without hesitation.

"You've made a wise choice," a middle-aged man said, taking the key and heading toward the side entrance.

With a swift motion, he inserted the key and turned it.

Click.

The door creaked open, and over a dozen people rushed inside in a chaotic flurry.

Boom!

The door slammed shut behind them.

Zebro watched them disappear through the side entrance, shaking his head before turning to Kaizen with a slight smile...

12 HxH: The Strongest Assassin

After defeating the Chimera Ant, Killua had grown remarkably stronger. Though his power lay in speed rather than brute strength, he was anything but weak.

Being a Transmuter, not an Enhancer, meant Killua had different strengths. Still, among the entire Zoldyck household, only Maha, Zeno, Silva, and Illumi were superior to him in ability. Even Tsubone, the family's oldest and most skilled servant, was unlikely to pose a threat to him anymore. As for the rest of the house staff—none of...

11 HxH: The Strongest Assassin

Zeno remained silent for a moment, then finally spoke.

"I'm not sure what your great-grandfather intended. He didn't give me any specifics. Let's just follow Illumi and the others' example. We'll wait and see what plans your great-grandfather sets in motion."

Silva gave a curt nod.

Suddenly—

BOOM!

A thunderous crash echoed through the air as Sanghir flew backward, hitting the ground with a thud.

This time, Kaizen fought with calculated precision. He didn'...

10 HxH: The Strongest Assassin

Hearing this, Sanghir snapped back to reality, a flicker of gratitude softening his gaze toward Kaizen.

I've already lost. It's over. There's no point fighting anymore.

By the terms of their agreement, the Zoldycks would dispose of him like trash. His failure meant death.

No chance to return to his dojo. No way back to his hometown.

He'd never see his wife again—or his kind, beautiful daughter.

Regret welled in his heart. He regretted setting foot on Zoldyck es...

9 HxH: The Strongest Assassin

Sanghir couldn't accept it.

At first, he'd looked down on Kaizen, dismissing him as just another kid—not much of a challenge.

A nine-year-old boy? Please.

I'm a martial arts master.

But after their fight, Sanghir knew how wrong he'd been. Very, very wrong.

Kaizen wasn't weak—not in the slightest.

It wasn't just that the boy's physical abilities were outstanding. His combat skills were also shockingly refined. The precision, the instinct—he fought like...

8 HxH: The Strongest Assassin

By evening, the people Zeno arranged had already arrived.

A middle-aged man stood before them—his posture rigid, shoulders broad, and eyes sharp. He had the presence of someone well-versed in martial arts. His attire hinted at a dojo background, though time had worn it thin.

Kaizen sized him up, his gaze cold and calculating. There was something off about the man's aura—intense but jagged, as if forged through harsh discipline.

The man stared back, measuring Kaizen in re...

7 HxH: The Strongest Assassin

Maha Zoldyck gave a brief nod, his expression as unreadable as ever.

"Return in a year, and I'll teach you the next phase."

"Yes, great-grandfather," Kaizen replied respectfully.

Maha's piercing gaze lingered for a moment longer before he spoke again.

"I'll be in seclusion for a while. If anything urgent comes up, seek out Zeno."

"Understood."

With that, Maha vanished in the blink of an eye, leaving no trace.

Even the butlers had no idea where Maha re...

6 HxH: The Strongest Assassin

Kaizen's aura mastery was still in its infancy, but his foundation was solid.

He'd already grasped the Four Major Principles—Ten, Zetsu, Ren, and Hatsu—along with the basics of Gyo. For a beginner, this was an impressive start. But he knew that mastering Nen wasn't just about the basics. Only after building a strong foundation could he learn the more advanced techniques.

Kaizen's progress wasn't surprising, though. His master was none other than Maha Zoldyck—one of the top f...

5 HxH: The Strongest Assassin

"Actually, we've crossed paths before," Maha Zoldyck said calmly.

"During the Water Divination, I asked you to focus your aura in both palms. That was a rough application of Ten—but still a valid one."

He crossed his arms. "In a narrow sense, Gyo refers to focusing aura in the eyes, which lets you see things hidden to the naked eye. More broadly, it means concentrating aura anywhere—on the eyes, fists, or any part of the body. It's versatile."

Kaizen nodded thoughtfully,...

4 HxH: The Strongest Assassin

Kaizen understood exactly what Maha was about to do.

Aura Types was divided into several categories. Six, to be precise: Enhancer, Conjurer, Manipulator, Transmuter, Emitter, and Specialist. Each type excelled in specific areas, and the nature of one's aura determined which path would be most effective to follow.

Specialists, though, were an exception—more of a catch-all category for individuals whose abilities didn't fit neatly into the other five. Their potential could be imme...

3 HxH: The Strongest Assassin

Kaizen followed Maha into the yard.

"Show me what you've learned so far."

"Yes, great-grandfather."

Kaizen gave a respectful nod and closed his eyes, focusing his mind. After a moment, he opened them again.

"Ten."

Ten—the practice of wrapping aura around the body—was fundamental for any Nen user. It was a constant state, like breathing. You didn't need to think about it all the time, but it had to be maintained.

There were two types of Ten. One was the ...