Killua developed his Transmuter ability in just one night.
When Gon learned about this, he exclaimed how cunning Killua was while racking his brains to ponder the direction for developing his ability.
Morrow, however, was not surprised by this at all.
His teaching method was completely different from Wing's subtle guidance in the original work. Instead, he spared no effort in digging into the talents of Gon and Killua.
After laying a more solid foundation and combining it with systematic theoretical instruction...
With Killua's exceptional talent, it was only natural for him to smoothly develop his own ability.
But what Morrow didn't expect was that under these various influences, Gon soon also determined the development direction of his ability.
Perhaps because he had already mastered the application of 'Shu' proficiently, he naturally thought of developing abilities centered around his 'fishing rod.'
Thus, in this atmosphere of healthy competition, the growth speed of Killua and Gon's abilities once again entered a rapid development phase.
—--
Another month quickly passed.
Mid-June.
Killua's Nen ability system, centered around electricity, had basically taken shape.
From the moment he received theoretical guidance, he had already clarified the direction of his ability.
Based on converting aura into electrical energy, he developed multiple attack methods and used electricity to enhance his physical functions.
To achieve this goal, it meant he had to shift his Nen System to the central point between Transmuter and Enhancement.
He firmly believed he could do it.
Because the cultivation methods, training volume, living environment, and even the influence on body and mind that Morrow mentioned were all highly compatible with his experiences growing up, perfectly aligning with his now-developed ability to convert aura into electrical energy.
So Killua truly succeeded.
In just one month, relying on extraordinary training volume, he efficiently mastered the application of two abilities, anchoring his Nen System at the midpoint.
It was only at this moment that he truly understood.
The talent gap Morrow mentioned earlier was not mere modesty.
After all, for the same result, he only took one month, while Morrow spent a year and a half.
Although he personally experienced the time gap brought by talent, in Killua's heart, his respect for Morrow remained undiminished.
At the same time, it didn't stop him from proposing a practical training request to Morrow to test its combat effectiveness.
"You're sure you want to... well, have practical training?"
Seeing Killua make such a request, Morrow was surprised and verbally confirmed.
Killua drooped his eyelids and said irritably, "Teacher, were you just about to say 'asking for a beating'?"
"Not at all."
Morrow denied it without changing his expression.
Killua let out a light snort through his nose, clearly convinced that Morrow had been about to say those words but changed his mind in time.
He raised his right hand, aura instantly transforming into dancing electric arcs flowing at his fingertips, confidently lifting his chin: "Although I've only trained for a month, I'm sure of one thing; I'm really strong now!"
"I can see that."
Morrow praised sincerely: "To achieve this level with your ability in just one month is truly amazing."
Beside them, Gon looked at the electric arcs in Killua's palm, his eyes also filled with admiration. During this period, he watched as Killua rapidly perfected his ability system, even going so far as to ask for tips.
Killua's response was that it was due to various hellish, almost abusive training sessions since childhood, which included enduring electric shocks from birth.
Coupled with his physical fitness far surpassing his peers, he could adopt an ability operation method that used electricity to enhance his bodily functions.
After understanding why Killua could perfect his ability system so quickly, Gon not only felt admiration but also realized his own advantage: his mastery of the Four Major Principles, especially Zetsu...
Despite this, Gon's progress in perfecting his ability system still wasn't as fast as Killua's.
Killua was even confident enough to request practical training from Morrow.
Killua was now eager and ready, after all, he had been holding back for a month!
Seeing Killua so eager to find... well, Morrow naturally couldn't refuse.
He roughly guessed that Killua had probably developed his 'Godspeed' ability.
In itself, transforming aura into electricity was an extremely rare ability.
And on top of that, Killua could achieve the ability to withstand electricity with his body, allowing his physical functions to break through their limits.
It could only be said that he truly lived up to being the most talented genius in the history of the Zoldyck Family.
Soon, on a spacious, flat ground.
Morrow and Killua stood dozens of meters apart.
Gon stood at the edge of the field, watching the impending practical training session.
Morrow picked up a small stone from the ground and casually raised it, saying, "When it hits the ground, the match begins. Is that okay?"
"Okay!"
Killua nodded, his expression becoming intensely focused.
Morrow sensed an unprecedented seriousness from this focus.
Why such a demeanor...
Probably because of those experiences during the Hunter Exam, right?
If the root of abandoning friends and family out of fear and terror was his own lack of ability, then he would train harder than anyone else, becoming strong enough to never have to retreat due to insufficient strength, no matter what powerful enemy he faced.
Killua, you must be thinking something like that, right?
Since you're so eager to prove yourself...
Then I can't just go through the motions.
With that thought, Morrow flicked his fingertip, and the stone shot into the air.
In that instant, both their gazes followed the stone as it traced a parabolic arc.
The moment the stone hit the ground with a crisp sound...
"Zap!"
Dazzling electric light suddenly erupted around Killua, countless arcs of electricity coursing over his body, enveloping him in a layer of brilliant white light.
If nothing else, this rapid Nen activation technique alone was enough to show how much hard work Killua had put in.
At the same time, Morrow also promptly used his Starlight Convergence ability, the aura surrounding him instantly transforming into countless points of starlight, the brilliant aura specks quickly spreading across the entire area.
"His hair hasn't changed..." Noticing the difference in Killua's ability form from what he had expected, a flicker of understanding passed through Morrow's eyes as he thought, "After all, it's only been a month. Perfecting the system is already impressive enough."
At that moment, Killua took the initiative to attack.
Whoosh!
Enhanced by the electricity, Killua truly achieved lightning speed, leaving only an electric arc in his original position the moment he started moving.
In the next instant, he appeared at Morrow's side wreathed in electric light, thrusting forward with a palm wrapped in crackling electricity. Watching from the sidelines, Gon's pupils sharply contracted at the sight.
So fast!
Gon's eyes widened.
Inside the training area, despite the lightning-fast assault, it couldn't surpass the reading speed of starlight.
Morrow had already visualized Killua's offensive in his mind, effortlessly evading the Palm Blade with a simple backward step.
While retreating, he even cast a sidelong glance at Killua.
Their gazes intersected amidst the thunderous exchange of attacks.
Morrow's composure starkly contrasted with Killua's sharp intensity.
"Still not fast enough..." Though his supremely confident strike missed, Killua remained unfazed, his mind wholly focused on the fight.
Seeing Morrow showed no intention of counterattacking, Killua pushed his ability to the limit, maximizing his physical capabilities.
Zzzzt!
A faint crackle echoed in the air.
Killua transformed into a bolt of lightning, true to his ability's name, swiftly pursuing Morrow who had just steadied himself.
Then, in what felt like slowed time, he saw Morrow close his eyes.
Suppressing his rising astonishment, Killua's electrified attack followed through, closing in on Morrow.
Yet Morrow seemed to anticipate Killua's rapid consecutive strikes, evading them perfectly with precise movements.
"...!"
Killua's heart jolted, his previously lightning-fast form abruptly freezing in place.
Not from shock, but from sudden golden chains that bound him motionless.
Only then did Morrow open his eyes, the electrical sparks reflected in his pupils quickly replaced by brilliant starlight.
「Astral Step」
Morrow instantly closed the distance, his elongated fingertip lightly pressing against Killua's neck.
Since he used Astral Step to approach, the golden chains hadn't even dissipated yet.
"End."
Morrow withdrew his hand.
Only then did the golden chains restraining Killua suddenly disperse.
Killua stood dazed, seemingly surprised by how quickly it ended.
Could ordinary talent really reach such heights?
Doubt crept into Killua's mind as he recalled Morrow's words.
Human talent determines one's ceiling, but Nen knows no limits...
Witnessing the spar conclude this way, Gon felt inexplicable emotions stirring within.
He silently tightened his grip on the fishing rod, sensing an intangible yearning.
After the battle, Killua wasn't discouraged but grew more determined.
He continuously sparred with Morrow, seeking breakthroughs.
Yet even after exhausting his 'charge,' he never managed to touch Morrow once.
"You've improved remarkably."
Morrow evaluated Killua's performance.
Killua couldn't tell whether this was consolation or genuine praise.
Another day of training concluded.
Night enveloped Whale Island.
After nearly half a year of cultivation, Morrow deemed it sufficient. After dinner, he produced the box he'd previously obtained from Mito.
This box, inscribed with Divine Script, was left by Ging for Gon, the key item guiding him to Greed Island.
"This is from Ging."
Noticing Gon's curiosity about the box, Morrow explained its origin on Mito's behalf.
Gon's face immediately lit up with surprise, eagerly examining the box with Killua.
Morrow didn't disturb them, quietly leaving the room. Just before returning to the inn, he encountered Mito waiting at the entrance.
Holding a bento box, she smiled as she always had and said, "I couldn't finish using today's ingredients again."
Then she added, "You've worked hard these past days."
She knew about Morrow's efforts for Gon during this time and sensed that Morrow was preparing to leave.
"Thank you."
Morrow smiled as he accepted the bento box.
The evening breeze carried the warmth of June.
Mito tucked her wind-tousled hair behind her ear, smiling at the man before her.