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Nen in One Piece

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Synopsis
In a world where power and ability shape the destiny of its inhabitants, two young brothers, Koby and Te, are on the cusp of discovering their true potential. Raised by their formidable mother, Bisky, the boys have always been driven to push their limits.
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Chapter 1 - Chapter 1

"I'm telling you, Luffy is going to find the One Piece. There's no way Oda would spend decades building this world for it to end any other way!" Te argued

"Who cares I'm not reading that damn manga" Koby shot back, " and when the manga is done you better not spoil it." crossing his hand over his chest.

The two friends have been arguing for hours over Koby catching up to the anime and start reading the manga. It wasn't the first time they had this argument and it won't be the last.

"The manga is absolutely peak fiction and Oda has been in his bag since Wano ended."

"Bro get his meat out your mouth" Koby laughed.

"What is wrong with you, the way he foreshadows everything and ties it back to the current events is GOAT-worthy."

" I could tie everything back too if my manga has been going as long as his"

Te sighed, twisting his coiled hair with his fingers "You already watch 1000 plus episodes you might as well catch all the way up and we can debate theories on each chapter"

"Fine whatever I'm not saying it's a bad anime just the pacing is really bad and I'm a busy person with my internships going on in computer science and class stuff, and how do u have enough time aren't you in the military."

"I caught up before I joined and it's not hard to do my job just coding most of the time"

Koby opened his mouth to respond, but the sound of shattering glass cut him off. Both of them turned towards the window, where shards of glass scattered across the floor. A cold wind blew into the room, carrying with it an ominous sense of dread.

"What the hell—" Koby started, but his words were cut short as the door burst open. Three masked figures stormed into the apartment, guns drawn.

"Stay where you are!" one of the intruders barked, pointing his weapon at Te and Koby. "Don't make this harder than it has to be."

Panic surged through Koby's veins as he raised his hands slowly. "W-What do you want? We don't have much, I swear—"

"Shut up," the leader snarled. "This isn't about money." He glanced at his companions, who began tearing through the apartment, tossing aside furniture and belongings as they searched for something.

Te's mind raced. This couldn't be happening. It didn't make any sense. "Why are you doing this?" he demanded, trying to keep his voice steady.

The leader didn't answer. Instead, he turned to one of the other intruders, who had found something behind a shelf. "Got it," the man said, holding up a small, unmarked box.

The leader nodded, then looked back at Te and Koby. "Sorry, boys. Wrong place, wrong time."

Before either of them could react, the leader raised his gun and pulled the trigger.

The world went black.

-------------------------

Koby awoke to the sensation of floating in an endless void. He felt weightless, as though he were drifting through space. Slowly, his consciousness returned, and he became aware of a faint light in the distance. The light grew brighter, and as it did, the darkness around him began to dissolve.

He tried to move, but his body felt strange, as though it wasn't fully there. Panic started to rise in his chest, but before he could succumb to it, a calming voice echoed through the void.

"Relax, young one. You're safe now."

Koby looked around, but he couldn't see the source of the voice. The light continued to grow, enveloping him in its warmth. As the light filled his vision, the void disappeared, replaced by a serene landscape of rolling hills and clear blue skies.

He blinked, and suddenly he was standing on solid ground. The transition was so smooth that he didn't even realize he was now fully corporeal again. He looked down at his hands, flexing his fingers to make sure they were real.

"Koby?" a familiar voice called out.

Koby turned to see Te standing a few feet away, looking just as confused as he felt. "Te, what… Where are we?"

Te shook his head, his eyes wide as he took in their surroundings. "I don't know. One second we were… and now…" He trailed off, clearly as lost as Koby.

Before they could discuss further, the ground beneath them rumbled. They looked around, noticing the sky beginning to shift, swirling with vibrant colors. The hills seemed to stretch into infinity, the grass swaying in a nonexistent breeze.

"Welcome, travelers." The voice from earlier returned, but this time it was accompanied by a figure materializing before them. The figure was a man, tall and imposing, with an air of authority. He had sharp features, and dark hair, and wore a flowing robe that seemed to shift in color with every passing moment.

Te and Koby stared in shock as the realization hit them simultaneously. "Oda?" they both exclaimed.

The man smiled, a knowing gleam in his eyes. "You may call me that, yes. Though in this place, I am something more."

Koby's mind raced. "Are we… dead?"

Oda's smile didn't waver. "In a sense. But death is merely a doorway, and you have stepped through it."

Te took a cautious step forward. "Why are we here? What's happening?"

"You are here because your journey is not yet over," Oda explained, his voice calm and reassuring. "I have brought you to this place because I have seen your passion, your dedication to the world I've created. And now, I offer you a choice."

Te and Koby exchanged a glance. "A choice?" Te echoed.

Oda nodded. "I can send you back to the world you knew, to rest in peace. Or…" He paused, letting the word hang in the air. "I can reincarnate you into the world of One Piece. A world where you can live your own adventure, forge your own path, and perhaps even influence the story you hold so dear."

Te looked at Koby with a shit-eating grin. Koby looked back at him and knew instantly what was going to come out of his best friend's mouth

" I fucking told you this man was the GOAT!! Never doubt me again."

"Alright alright, but now is not the time"

Clearing his throat " You boys need to make a decision" 

Te heart skipped a beat. "You're saying… we could be part of the One Piece world? Like, actually live there?"

Yes," Oda replied. "But know this: the world of One Piece is fraught with danger. It is a place where strength and resolve are tested at every turn. Should you choose to be reborn there, you will need more than just your knowledge of the series. You will need power, skill, and the will to survive."

Te considered this, his mind racing with possibilities. "And if we choose this… will we be starting from scratch? No abilities, no powers?"

Oda's eyes gleamed. "I am not without mercy. I will grant you each 3 skills and one form of energy to aid you in your journey. Consider it a gift, a way to help you find your footing in a world that can be unforgiving."

Koby and Te didn't need to think for long. The idea of living in the One Piece world, of experiencing the adventures they had only read about, was too tempting to pass up.

"We'll do it," Koby said, his voice firm. **"We'll go to the One Piece world."

Te nodded in agreement. **"Yeah, and we'll make sure we don't waste this opportunity."

Oda smiled, a glint of approval in his eyes. **"Very well. But before you embark on this new journey, you must choose your Skills and energy type. Choose wisely, for these will shape your future."

A large, ancient-looking book appeared in front of them, hovering in the air. Its pages turned on their own, revealing lists of talents and energies they could choose from. Te and Koby stepped forward, examining their options.

"Koby we should have one body enhancement one combat skill and one technical skill and together we can accomplish almost anything" Te proposed

"Yeah sounds like a plan."

--------------------

SKILLS

Enhanced Endurance: Greatly increased stamina, allowing the user to fight or work for extended periods without tiring.

Perfect Balance: The user never loses their balance, even on unstable surfaces or in mid-air.

Poison Resistance: Immunity or reduced effect of poisons and toxins.

Enhanced Reflexes: Faster reaction time to sudden threats or opportunities.

perfect Aim: Enhanced accuracy with ranged weapons or thrown objects.

Linguistic Mastery: Automatically understand and speak any language after hearing it.

Natural Leader: Others are more likely to follow and trust the user, enhancing teamwork.

Unbreakable Will: The user is immune to fear and intimidation, maintaining focus in the face of danger.

Water-Walking: The ability to walk on water surfaces without sinking.

Resourceful Fighter: The user is naturally skilled at using improvised weapons in combat.

Natural Healer: The user has an innate ability to stabilize and heal minor wounds in others.

The list went on and on, the book felt almost limitless

Koby's eyes were drawn to a talent called "Engineering Mind." It promised the ability to create advanced inventions, to build things beyond the scope of normal human understanding. "This one," Koby said, pointing to it. **"And… 'Adaptable Body.' I want to be able to adjust to any situation, to survive whatever the world throws at me. And mimicry said to copy any martial technique with a simple glance."

Te nodded in approval, then focused on his own choices. **"I'll take 'Chemistry Mind'—being able to create powerful compounds could be really useful. And for the second one… 'Zenkai Body.' The ability to grow stronger after near-death experiences. That could be a game-changer.

' now what should be my third choi..' Te finger paused on a certain skill he knew would help him grow stronger soul manipulation

Oda nodded, the book closing with a soft thud. **"Excellent choices. And now, for your energy type."

Both Te and Koby spoke simultaneously. "Nen."

Oda's smile widened. **"Nen. A power that can be both versatile and deadly in the right hands. Very well. Your choices have been made. Prepare yourselves."

The world around them began to shift again, the landscape warping as a portal opened before them. The portal was a swirling vortex of colors and lights, pulsing with an energy that made their skin tingle.

As the portal swirled with vibrant colors, Te and Koby felt an overwhelming surge of energy pull them closer. The sensation was unlike anything they had ever experienced—both exhilarating and terrifying. The air crackled with anticipation as they exchanged one last glance, silently reassuring each other that they were ready for whatever lay ahead.

"Remember," Oda's voice echoed around them, "this world will not show you mercy. But with the skills you've chosen and the energy of Nen at your disposal, you have the potential to become legends in your own right."

Te clenched his fists, feeling the power of Zenkai Body and Soul Manipulation coursing through him. He could already sense the possibilities, the battles, and the challenges that awaited. Koby, meanwhile, felt a newfound clarity and adaptability—his Engineering Mind already buzzing with ideas, while his Mimicry and Adaptable Body prepared him to face any situation head-on.

' Wait why can't I move… no don't tell me I'm in a babies body and does that mean Koby is in one too'

In the crib besides Te, Koby was also panicking because he always hated isekai stories and now he had become what he hated most.

Te's mind raced as he tried to process what was happening. He couldn't move much—his limbs felt tiny, weak, and uncoordinated. The realization hit him like a ton of bricks: he had been reborn into the One Piece world as a baby.

'No way… I'm a baby? And Koby must be too,' Te thought, his heart pounding. He glanced around as best he could from his limited vantage point, and sure enough, in the crib beside him, Koby's tiny form was also wriggling in panic.

Koby, who had always scoffed at the idea of being reborn in another world, was now living his worst nightmare. He had hated isekai stories for as long as he could remember, finding them cliché and overdone. But now, he was the protagonist in one, trapped in the body of an infant, unable to do anything about it.

Te wanted to laugh at the absurdity of the situation, but all that came out was a small, unintelligible gurgle. 'This is unreal. We've got all this power and potential, but we're stuck in baby bodies? How long is it going to take before we can actually do something?'

Koby's frustration was palpable, even in his tiny, helpless form. 'This is a joke, right? I've got all these skills, but what good are they when I can't even hold my head up?' he thought, silently fuming.

As the two lay there, helpless in their cribs, they could hear muffled voices coming from outside the room. The language was unfamiliar at first, but thanks to their skills, they quickly began to understand it. It was clear that they were in a small, humble home somewhere in the One Piece world.

'We need to figure out where we are and who's taking care of us,' Te thought, trying to piece together their next steps. 'If we can just survive this baby phase, we'll be able to start our journey for real.'

Koby, still fuming, resolved to make the best of the situation, no matter how much he hated it. 'Fine, I guess this is our life now. But when we grow up, we're going to shake this world to its core.'

As the two both had their inner monologue, a long blonde-haired woman wore a pink knee-length dress with puffed short sleeves. Almost doll-like fashion which matched her youthful and innocent appearance

She is wearing white gloves that extend to just below her elbows, giving her an elegant and refined look. Walked into the room where the boys were in.

"My sweet little gems, you are both so precious and cute"

Walking towards the boy's cribs and squeezing their baby face.

The woman looked at both of them and remembered she still hadn't named the boys yet.

Her eyes lit up as she said, "I want their names to be…" she paused, her mind racing to find the perfect name from of the many that she had loved, most of which appeared to elude her.

 Suddenly, two names popped into her head

"Koby, and Te both your names will be Koby and Te Krueger"

The woman nodded happily, she was clearly pleased with her decision. She picked them both up and cradled them in her arms.

" My name is Biscuit, and you are both my sweet little boys"

Koby and Te tried their best to look at each other but it looked a little sloppy, but both knew instantly what the other was thinking.

This was Bisky from Hunter X Hunter the one who trained Gon and Killua, they both were wondering if Oda actually sent them to the right world.

Hunter x Hunter world was fascinating and the power system was interesting but the world itself was fucked, and not what they signed up for.

The world was cruel and didn't hold back on the violence, at least in one piece as long as you didn't cross paths with the government you were relatively fine.

The One Piece world would give them time to grow and develop their skills but Hunter x Hunter could start their story super younger barely a teenager.

' Oda definitely fucking with us, he probably put her just cause we asked for Nen energy to come to the one piece world.' Te thought. He didn't mind it though because if she was anything like her counterpart then she would be extremely strong and great at teaching them the basics.

' We just have to make it through the first few years and…'

(HXH narrator voice) Mid thought without even knowing Te had shit himself 

WAAAA WAAAA WAAAA WAAA WAAA WAAA WAA WAA WAA

' Pathetic, how did he eve….'

(HXH narrator voice) and just like the duo destined to shake the world shit themselves.

--------------------

After a long day of kisses, pooping, exploring the house, and napping, the boys were finally alone in their room. They gave each other a knowing glance only one would know through decades of friendship or at least tried to their body not being the most adept at moving their head yet. Luckily in the one piece world babies were a little stronger. 

They were going to practice their Nen tonight.

When they were given the ability of Nen they both instinctively knew how to use it, now they just had to put it into practice.

Koby was worried that maybe Bisky had Nen and would discover them, but he could feel nothing substantial coming from her, but what he did notice was her life energy. He theorized that it was cause all living beings had life energy and when Oda gave them nen he applied it to the rest of the world. Hopefully, they would be the only ones able to use it properly or they would lose their biggest advantage.

(A/N I just added Nen to every living being, NO ONE knows it unless the MCs decide to teach them about it..)

Te focused first, drawing on the knowledge that had been embedded in his mind from watching Hunter x Hunter. He could feel the energy within him, the dormant power that was just waiting to be unleashed. It was different from anything he had felt before, even in his previous life. Carefully, he began to channel his Nen, trying to manifest it in the smallest, most controlled way possible.

Koby watched him closely, his own Engineering Mind analyzing every detail. He could feel his Adaptable Body responding to the energy around him, his senses sharpening, his mind racing with possibilities. He knew that they were still in their infancy—literally—but that didn't mean they couldn't start laying the groundwork for their future strength.

With a concentrated effort, Te managed to produce a faint aura around his tiny hand. It flickered like a small flame, weak and unstable, but it was there.

'FUCK YEAH I DID IT!!!!' He grinned inwardly, 

Te focused the little amount of aura he had around his body to look at Koby and give a toothless shit-eating smile.

Basically saying I'm better than you.

Koby not wanting to fall behind, drew on his own Nen. He felt the energy respond, though it was more chaotic, less refined than Te's. but he did not let that discourage him. His body naturally adapting fix his aura to become more refined so as not to self destruct itself from only being a day old.

Koby using the same trick as Te looked at him with the smile he gave him earlier but this was saying ' As if.'

Te caught Koby's expression and recognized the unspoken challenge. They had always pushed each other to be better, and it seemed that even in this new world, that competitive spirit was alive and well. 

The room began to fill with a soft, almost imperceptible hum as the two babies continued their practice. They were far from mastering their abilities, but this was the first step. They knew they had to be careful, though. Bisky might not be able to sense their Nen yet, but they didn't want to risk drawing attention to themselves too soon.

---------------------------------

The next day

Biscuit came in the room skipping along happy to see her precious gems * cough * * cough* i mean babies.

When she walked to their cribbed she noticed they were sound asleep. Biscuit was a little worried because she heard from other mothers that babies tend to keep up the parent all night and the boys hadn't woken her up once and now they were still sleeping.

She could still see their little chest going up and down so she knew they were still breathing. Feeling like she was worrying for nothing she took both of them and her arms and started to feed them.

'Man last night was so exhausting…. Wait what am I doing?' Instinctively Te's body was sucking on the breast milk coming from Bisky

Koby, meanwhile, was slightly more awake, his thoughts more coherent despite his baby brain. He couldn't help but find the situation somewhat absurd but also necessary. If they were going to grow strong enough to survive and thrive in this world, they needed to regain their strength in any way possible—even if that meant embracing the awkward reality of being in a baby's body

Koby wanting to test out his theory on nen in this world focused on bringing out his aura in front of Bisky risking getting caught. He watched her carefully, ready to shut it down at the first sign of detection. But to his surprise, she didn't even flinch. It was as if she didn't notice anything at all.

In Hunter X Hunter people couldn't see Nen unless they unlocked the aura nodes in their eyes making it invisible to them. Koby knowing this wanted to test this theory to see if BIsky would react to it but it seems now Te and him could practice Ten at least without being caught. 

Koby's actions were caught, but not by Bisky but by Te who was furious he would expose them on their second day of living, but his frustrations quickly went away when he noticed Bisky not even paying them any mind. She simply continued smiling at them, completely oblivious to the energy they were emitting.

Activating his Ten to notice any difference from bisky smiling at them and he saw nothing.

With this newfound discovery, the boys practice their Ten, Zetsu, Ren, and Hatsu with and without Bisky noticing for the next 3 years increasing their aura amount and control. During this time, they also discovered their respective Nen types: Te was a Specialist, while Koby was an Emitter.

Te had wanted to create a hatsu that could enhance his chemistry ability, and develop his ability "equivalent exchange". This ability allowed him to create the materials he needed as long as he had the necessary materials to trade them in for. 

Te knew this ability was absolutely needed for himself and Koby who would be making out of this world inventions. It also functioned Like FMA so in a sticky situation he could create a finite amount of weapons out of the mass from the ground.

Koby created his hatsu more combat focused calling it "elemental mimicry". Being fascinated with the logias in this world he created his hatsu around that the only catch was he had to be around that elemental for long periods of time which was basically torturing himself, but with an adaptable body the process went smoothly adding fire, lighting, light, water, and earth to his arsenal.

He couldn't make his body intangible yet, but he knew he was close to figuring it out and probably had to fight the respective people with that element to accomplish it.

They were both happy with the progress they made in the last three years. Their aura amount was definitely top tier, even in Hunter X Hunter verse because in the world of One Piece, the people had a dumb amount of life energy.

"Mom this food is amazing," Te said, shoving another mouthful of food in his mouth.

"Yeah keep cooking more please"

Bisky cooed as she prepared breakfast for her beloved boys, a warm smile on her face as she looked at the peaceful scene before her. The smell of freshly cooked food filled the air, and she carefully fed the boys, gently patting their backs as they finished their meal. The morning was serene, and for a moment, everything seemed perfect.

However, this tranquility was abruptly shattered by a deafening explosion that shook the entire house. The windows rattled, and dust fell from the ceiling. Koby and Te's eyes widened in alarm, their training instincts kicking in as they sensed the urgency of the situation.

Koby and Te both activate En Combining theirs so they can reach where they felt the explosion come from. Something they had been practicing to extend their En range.

When their En reached the village they could see pirates ransacking the village causing major problems for the townspeople.

"Them yns acting up," Te said

"We can't say that anymore we're barely black now our father was probably really light skin and Bisky's genes just finished it off," Koby replied, shaking his head

"At least we won't have to worry about Zoro in the future pffttt" Te laughing at his own joke

"You're an idiot" Koby retorted, a hint of amusement in his voice despite the dire situation.

Their moment of levity was cut short as they heard Bisky's hurried footsteps. Bisky rushed back into the room, her face filled with determination. "Stay hidden and stay safe," she said firmly. "I need to deal with these pirates. If you're found, it could put both of you in danger." She quickly closed the door behind her, leaving the boys in the dimly lit room.

Koby and Te exchanged worried glances, their playful banter fading as they focused on the sounds of the village being attacked. They knew they had to stay hidden, but their growing frustration and desire to help were palpable.

"Should we go out there and help" Te questioned, worrying about the state of the village.

"You and I both know Bisky is stronger than those pirates, she will be able to handle the situation herself with the help of some of the guardsmen."

"You're right. I'm really itching to test my strength, though," Te admitted.

"I see where u are coming from the pirates probably aren't even that strong especially since we are still in the South Blue"

"Wait do u feel that someone is coming our way and they don't seem weak based on the speed they are moving."

"Shiit you are right. Activate Ken!"

Both the boys left the room and started using Ken an advanced form of Ten and Ren. Sensing the rogue pirate heading toward them at a greater than normal human, they knew he was probably the captain and he was no normal pirate at that either.

Within seconds the pirate arrived at their home and burst inside with a panicked look on his face. Turning around and seeing no one chasing him the pirate sighed in relief. Turning back around he noticed a boy standing in front of him with a scared expression on his face

"Sorry lad I can't say haven't murdered children before, but when I deem it necessary to get a point across, and right now you staying alive will make that damn woman catch me." the pirate sneered.

"W-wh-who are you,w-what do you f-from me." Koby barely stuttered out

*sigh "The name is Alexandre Greaves Captain of the Hunting Pirates, Bounty of 95 million berries. I can at least let you know the name of your killer tot before killing you. I have some honor"

Before Greaves could take another step, a major alarm in his mind told him to duck. Trusting his instincts, he ducked, and not a second later, another kid came from behind, swinging a sword at where his neck had just been. 

Trusting his mind to duck he did, and not a second later, another kid came from behind and swung a sword aiming at where his neck just was.

Te clicked his tongue in annoyance "Not the most subtle entrance, but effective," he muttered, readying himself for the next move.

'Fuck this island is filled with monsters why didn't I feel this kid's presence with my observation haki, I know it's not the strongest but some runt can't get past it'

What Greaves didn't know was Te used Zetsu to hide his presence and intent until the last second when he used shu on the stone sword he made from his hatsu ability to cleave his head off.

"Good job idiot that was probably our best shot at killing this guy" Koby snorted

"Shut up like I was supposed to know he would duck at the last second, maybe you should have capitalized on the situation to help out instead of standing there."

Koby clenched his tiny fists, realizing that their current situation required more than just clever tactics; it needed coordination and quick thinking. "Fine, fine. Let's just finish this guy before he gets his bearings," he said, activating his own Hatsu. A surge of elemental energy began to emanate from him as he prepared to utilize his Elemental Mimicry ability, hoping to gain an advantage in the fight. The boys had no choice but to rely on each other's strengths to overcome this challenge.

Meanwhile, Greaves, sensing the dangerous potential of these infants, decided to shift his strategy. He gritted his teeth, clearly unnerved by the unexpected resistance. "You're not ordinary kids, are you?" he growled, pulling out a cutlass and preparing for a serious fight. "Fine, then. Let's see what you've got."

Greaves's instincts were telling him not to underestimate these brats, so he activated his armament haki and shrouded his sword.

"Great just Great, our first opponent is a haki user," Te voiced out. Even though he was complaining he wanted to test out just how far he could push himself.

Winning on his own might be impossible, but with Koby on his side, they had a decent chance of defeating the guy.

As soon as he had that thought Greaves vanished before his eye and landed a knee in his stomach sending him flying through the walls of the house and stopping when his back hit the tree.

Coughing up some blood he knew he was lucky he focused all of his aura where he was hit or he might have died.

"Damn he's fast, I barely even saw him move." Te coughed out. " But now the field should be even because if Koby saw that he should be able to keep up with him and I can play support."

Meanwhile, Koby had been preparing his Elemental Mimicry, harnessing the energy of the elements he had absorbed. He activated his power, calling upon the raw fury of fire and lightning to enhance his attacks. The sudden surge of energy made his presence unmistakable. As Greaves reappeared, ready to take on his next target, he found himself confronted by a barrage of elemental attacks. Koby's flames roared and lightning crackled, aiming to overwhelm the pirate captain and create an opening for Te to recover

Greaves, surprised by the intensity of the elemental onslaught, was forced to use his Haki defensively. His focus shifted from Te to Koby, who was now launching a relentless assault. Despite his impressive defense, Greaves struggled to maintain his footing against the combined force of fire and lightning. He gritted his teeth, realizing that if he didn't end this quickly, the odds would increasingly turn against him.

Koby seeing Greaves on his back foot used soru that he copied from him earlier, it wasn't as refined as his body was weaker but his nen made up for what he lacked.

Appearing behind Greaves Koby shot out a concentrated light beam at Greave's knee immobilizing him for a second, and using Kyo punched Greaves in his back sending him flying to Te.

Te seizing this opportunity conjured a great hammer from the ground and smashed it into greaves, which sent him flying into the tree line.

"Man that felt amazing"

*whoosh* koby appeared next to Te\

"Nice swing, but he definitely not out just yet."

Appearing from the tree line Greaves had an aggravated expression on his face

"You boys are something I'll give you that, but now it's time I stop playing games"

Suddenly, Greaves's eyes gleamed with a fierce determination. He stepped back, drawing a deep breath as if preparing for something monumental. A dark, swirling aura began to envelop him, pulsating with raw power. The air crackled with an ominous energy, and the ground seemed to tremble beneath his feet. Koby and Te exchanged uneasy glances, sensing that something extraordinary was about to happen.

Without warning, Greaves's body began to morph and shift in a grotesque, mesmerizing transformation. His limbs elongated and thickened, and his form grew bulkier and more feral. The once-human pirate captain was now undergoing a profound metamorphosis. The dark aura around him solidified, taking on the shape of a massive, intimidating beast. In moments, where Greaves had stood, there now loomed a gigantic sloth bear.

The sloth bear's fur was a deep, shadowy black, and its eyes glowed with a menacing crimson light. The transformation had not only enhanced Greaves's physical power but had also granted him a fearsome new set of claws and teeth. The bear roared, a guttural sound that reverberated through the surroundings, shaking the very air with its ferocity.

"Is this guy for real?" Koby shouted, his voice barely audible over the rumble of the beast. "

Greaves, now fully transformed, lumbered forward with surprising agility for his size. His massive paws slammed into both the boys sending them flying, before they could crash into anything greaves appeared and sent them flying in the air.

Before the boys could gather themselves Greaves once again appeared and threw the boys into the ground causing a massive crater into the ground.

Koby and Te lay in the crater, their bodies aching from the brutal impact. The ferocity of Greaves's transformation had exceeded their expectations, and the overwhelming strength of the sloth bear form left them reeling. Dust and debris settled around them as they tried to regain their bearings.

Te groaned, struggling to push himself up. "This guy's on another level. We need to find a way to turn this around, fast." His voice was strained, but determination shone through.

Koby, despite the pain, forced himself to stand. "I've got an idea," he said, his voice steadying as he looked at Te. "We can't match him in sheer power, but we can outsmart him. If we can find a way to exploit his transformation's weaknesses…"

"Got it," Te replied, nodding as he took a deep breath to steady himself. "I'll distract him. You focus on building up your strongest attacks. We need to hit him with everything we've got."

Greaves, seeing the boys struggling but still determined, let out a mocking roar. "Is that all you've got? I expected more from the ones who've managed to give me a bit of trouble. But don't worry, I'll make sure you're finished off properly."

"How about you stop picking on children and face someone your age" a voice came out from behind Greaves

Koby and Te knew that voice very well and were happy to hear it because as soon as they heard that voice they both passed out from their injuries.

"YOU DARE HURT MY CHILDREN!!"

Before Greaves could get a retort off, a small hand grabbed his face and slammed it into the ground.

BOOOOOOM!!!!!!

"NOT SO TOUGH NOW "

BOOM

"WANNA PICK ON CHILDREN"

BOOM

"HOW ABOUT WOMAN"

BOOM

BOOM 

BOOM

BOOM

As Bisky continued her relentless assault on Greaves, the ground beneath them quaked with each thunderous impact. Her normally cheerful demeanor was replaced with a fierce, protective rage, her small frame radiating an overwhelming aura of power. The once-mighty sloth bear captain was reduced to a helpless ragdoll, unable to resist the sheer force of her blows. Each slam drove him deeper into the ground, the earth itself seeming to recoil from the violence.

"YOU THINK YOU CAN JUST WALTZ INTO MY HOME AND HURT MY BABIES?!" Bisky roared, her voice echoing through the forest as she lifted Greaves's limp form and slammed him down again with all her might.

The repeated impacts left craters in the ground, and Greaves's transformed body began to revert, the sloth bear form crumbling away under Bisky's onslaught. He groaned, his once formidable presence now pitiful as blood and dirt mixed on his battered face. Despite his immense strength, he was utterly powerless against Bisky's fury.

Finally, Bisky stopped, holding Greaves up by the collar with one hand. Her eyes bore into his, seething with an anger that made the air around them seem to sizzle. "If you ever so much as think about harming my children again, I'll make sure this is the last thing you ever see," she hissed, her voice low and menacing.

With one final punch, Bisky sent Greaves flying through the air, his body crashing through several trees before disappearing into the distance. She stood there for a moment, breathing heavily, the adrenaline slowly leaving her system. Then she turned, her expression softening as she hurried back to where Koby and Te lay unconscious.

She knelt beside them, her hands gently checking their injuries. "You two really gave me a scare," she whispered, her voice trembling slightly with relief. Bisky carefully lifted them into her arms, cradling them close. "You're safe now," she murmured, carrying them back toward the house, her heart filled with a mixture of pride and concern.

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Later that night

Koby and Te woke up feeling slight aches. Their regenerative prowess wasn't this good yet. The room was dimly lit, the soft glow of a nearby lantern casting gentle shadows on the walls. They exchanged groggy glances, both aware that something had changed within them.

Te woke up his body feeling much stronger thanks to the zenkai boost, and Koby's body adapted to the soreness pushing his body to become stronger.

"Man, that was brutal," he muttered, rubbing his side where the worst of the pain had been. "But I gotta say, I feel stronger. Must be the Zenkai boost kicking in."

Koby, still lying on his back, nodded in agreement. "Yeah, I can feel it too. My body's adapting… It's like the soreness is pushing me to grow stronger." He clenched his fists, feeling the muscles in his arms tense with renewed power. "We're getting tougher, bit by bit."

As Koby and Te settled back into their beds, the door creaked open, and Bisky stepped into the room. The stern look on her face softened as she saw them awake and alert. She crossed the room with her usual grace, her small stature belying the immense power she held within.

"How are you two feeling?" she asked, her voice a mix of concern and motherly affection.

Te winced slightly as he sat up straighter, trying to hide the remaining discomfort. "Better than expected, but still a bit sore. What did you do to us?"

Koby glanced at Bisky with curiosity, noticing the calm, confident demeanor she always carried. "Yeah, I remember passing out right after you showed up. What happened?"

Bisky smiled gently, pulling up a chair and sitting beside their beds. "You boys took quite a beating. That pirate was no joke, and you're lucky you survived as long as you did. But don't worry—I took care of him."

Koby and Te exchanged glances, recalling the sounds of Bisky's powerful blows as they lost consciousness. Te nodded appreciatively. "We figured as much, but what about us? We should be in way worse shape after that fight."

Bisky leaned in slightly, her smile widening. "That's where my abilities come in. You see, I used my Massage Massage Fruit to heal you both. It's not just any massage—it can stimulate your body's natural healing processes, helping you recover faster and even grow stronger from the experience."

Koby's eyes widened with surprise" Oh my god Mom that is amazing,"

"Yeah That is so cool why didn't you say anything about it" Te chimed in

Bisky chuckled at their enthusiasm, clearly enjoying their reactions. "I didn't want you relying on it too much. It's a powerful ability, but it's not a substitute for proper training and discipline. You boys need to learn to push your limits and understand your own strengths. My ability is here to help you recover, but the real growth comes from within you."

"But it seems like you boys were holding back on me I didn't know you two were strong"

Of course, we are, we would have beaten that guy too if u hadn't helped" Te said flexing his right arm

*SMACK*

" you fool we almost died," koby said. Smacking the back of Te's head. " If Mom didn't show up, we would have lost"

"Don't hit me."

"I don't know what you are talking about" 

"Alright boys that's enough," Biscuit cut in, before Koby and Te could start arguing. " To prevent this from happening I'm going to train you both until you know everything I know."

"YEAH," they both cheered.

"Now get some rest we will have a busy schedule for the next few years."

"Ok Mom, but I have one question what happened to the pirates that attacked the town?" Te question, curiosity evident in his voice.

"They are in prison. We are waiting for the Marines to come and pick them up in a few days." Biscuit answered smiling at her precious children. " Alright, you both get a good night's rest."

Bisky stepped out of the room, humming a somewhat terrifying tune of what to be expected in the next few years.

"Bro why did you ask about the pirates"

"Because I think we can create the Philosopher's Stone," Te replied, his eyes gleaming with ambition. "With that, we won't have to worry about resources ever again." 

"Philosophe sto…wait, you mean the rock from Full Metal Alchemist? That philosopher stone,'" koby almost shouted at Te. " You realize we need souls for that, which means causing mass murder."

"Yes I realized that but we are not the Mc's we don't have a god fruit to help us in the late game of the journey"

"God what now. is that a spoiler from the show? I told you not to tell me anything from the last episode I watched!" koby cried out, now frustrated with Te.

" Calm down you were like an episode away from seeing Luffy dying and becoming the sun g..

"BRO SHUT THE HELL UP" Koby shouted, cutting him off. 'You manga readers love spoiling everyone calm down."

"Alright, my bad so are you in or not."

"Yeah, whatever I think it would be helpful to have the stone."Koby reluctantly agreed, though his expression showed he was still processing the moral implications.

"Good I'm glad you're on board because you will be the one doing the killing."

"Of course, I will be." koby said. "I'm assuming you had this plan as soon as you knew the pirates were here.

"Maybe," Te grinned, his mind already racing with the possibilities.

" So what's the plan"

"Quite simple honestly, first we will scan the prison to make sure there a no innocent bystanders inside, there is usually only one person guarding, then I will cause a commotion to lead whoever inside outside, then you my dear brother will leak poison gas inside the prison strong enough to kill them, and I will handle the rest," Te said matter of factly. " We leave once Mom goes to sleep."

"Alright fine"

"Not to rub this in your face but I think my aura nearly doubled cause of the zenkai boost," Te said smiling smugly.

"Of course it did, but I'm really worried about you being stronger than me cause I learned Soru, and Geppo while we were getting our asses kicked."

"What? No fair! you gotta teach me!"

"Mmmm, I don't think I will," Koby teased, smirking as he pulled the covers over his head and pretended to go back to sleep.

"You little shit, you're going to show me how to fly!" Te demanded, tugging at the covers in frustration.

"Nah, I don't really feel like it," Koby replied, his voice muffled by the blanket, clearly enjoying his brother's annoyance.

Te growled in frustration, yanking the covers off Koby. "Come on, man! You can't keep that to yourself. We're supposed to be in this shit together."

Koby laughed, sitting up and leaning back against the headboard. "Relax, I'll teach you eventually."

Te done with the conversation activated his En to one check his new range and two keep tabs on bisky to see if she was asleep. He felt the familiar wave of energy radiate outward, expanding his awareness as he tested his new range. The boost in power was noticeable. His en could now reach 6 kilometers which is double his last range, of course, it wasn't a perfect circle he was using the technique neferpitou was using to help extend the range.

Focusing on Bisky presence in the house, he noticed her aura slow and relaxed in her bed not moving signaling that she was asleep already.

Te smirked, sensing her asleep. " Use your En and double check if she is asleep."

Koby, sitting up straight, nodded and activated his En. The familiar sensation of his energy expanding outward filled him as he focused on locating Bisky. His En, though not as expansive as Te's, was still potent, and he quickly honed in on her aura. Just as Te had sensed, Bisky's presence was calm, her aura undisturbed and deep in a state of rest.

"She's definitely asleep," Koby confirmed, retracting his En. "We're clear to move."

Te's smirk widened. "Perfect. Let's get this done."

e and Koby carefully slipped out of bed, moving with the practiced stealth they had developed over the years. The moonlight filtered through the small window, casting eerie shadows on the walls as they navigated through the darkened house.

"We'll need to be quick and quiet," Te whispered, his voice barely audible. "I'll handle the commotion outside. You set up the gas inside the prison. Remember, we need to make sure there are no innocents around, so double-check before you release anything."

Koby nodded, his expression serious. "Got it. I'll create the poison gas using my Nen ability. Just make sure you draw attention away from the prison."

They moved through the house, avoiding any creaks in the floorboards, and reached the front door. Te took a deep breath and prepared himself for the next phase of their plan. Koby, on the other hand, made his way toward the back of the house, where he had a small, hidden stash of materials for his Nen techniques.

As Te reached the front door, he glanced back at Koby, giving a nod. Koby returned it and began his preparations. Te opened the door just a crack, enough to slip outside unnoticed. He scanned the area, ensuring that no one was immediately around, and then made his way toward the prison.

In the back of the house, Koby set up his Nen ability. He focused his aura and channeled it into creating a dense, poisonous gas. Using his Elemental Mimicry, he manipulated the elements to form a toxic vapor that he could control with precision. He concentrated, shaping the gas to be both potent and effective, ensuring it would incapacitate anyone inside the prison.

Koby made sure the gas was properly contained and directed. He then activated his ability, releasing the poison gas into the prison through a small vent he had rigged earlier. He watched as the gas began to seep into the prison, filling the air with a noxious haze.

Te, meanwhile, had started creating a diversion. He used his Nen to amplify the sound of an explosion nearby, causing a series of loud booms and flashes of light. The noise would attract attention and hopefully draw the prison guard and any other potential witnesses away from the area.

Sneaking to the top of the prison, Te activated his Nen ability and Soul Manipulation. He focused intently, channeling his aura to interact with the souls of those trapped within the prison. His goal was to gather and contain their souls into a smooth stone he had picked up from the forest earlier. The stone, while unassuming in appearance, was infused with Nen to act as a vessel for the captured souls.

With practiced precision, Te directed the souls into the stone, manipulating their energy to ensure they were contained without disrupting the structure of the prison. The process required intense concentration and control, as any misstep could lead to unintended consequences. Te's face was a mask of focus as he worked, ensuring that the souls were effectively absorbed and the stone remained stable.

As the diversion outside continued to wreak havoc, the prison guard and any nearby witnesses were drawn away from the building. The prison fell into a state of chaotic confusion, which provided Te with the perfect cover to complete his task. The gas Koby had released began to take effect, causing the prisoners to succumb to its effects and collapse.

Once Te felt confident that he had successfully captured the souls and the gas had done its job, he made his way back to Koby. He rejoined him at the edge of the property, where they waited in tense silence. Their plan had gone off smoothly so far, but they both knew that the real challenge would be dealing with the aftermath and ensuring that their actions remained undetected.

Koby looked at Te, his expression a mix of relief and exhaustion. "Did you manage to get the souls into the stone?"

Te nodded, still catching his breath. "Yes, it's all set. We need to get out of here and make sure we don't leave any traces behind."

The brother headed deep into the forest away from all the commotion.

Te finally having some peace activated his Hatsu to complete the philosopher stone.

After a grueling hour of focus and a depleted aura. The philosopher's stone had been created.

The Philosopher's Stone, now complete, was an astonishing sight. It was a large, smooth stone, its surface a deep, rich crimson that seemed to glow with an inner fire. The red hue was intense and vibrant, shifting subtly with the movement of light, as if the stone itself pulsed with a living energy.

The surface of the stone was marbled with veins of darker shades, giving it a textured appearance that resembled the intricate patterns of a bloodstone. This vibrant red color wasn't just a visual effect; it emanated a warm, almost palpable aura of power. The stone seemed to radiate an otherworldly heat, casting an eerie, reddish light that illuminated its surroundings in a haunting glow.

The light from the stone wasn't harsh but had a soft, penetrating quality, almost hypnotic. It gave off a gentle, pulsing light that shifted rhythmically, like a heartbeat. As the brothers looked at it, they could feel the dense, charged energy within, hinting at its formidable potential.

As Te held the Philosopher's Stone, he could feel a unique and unsettling presence within it. His hands tingled with an almost electric sensation as he concentrated on the stone's inner energy. The feeling was both foreign and familiar—a strange, pulsing warmth that seemed to resonate with his very core.

Koby, noticing Te's intense focus, raised an eyebrow. "What's going on? Why do you look so… I don't know, freaked out?"

Te's eyes remained locked on the stone, his voice low and contemplative. "This stone—it's not just an alchemical artifact. It's got a soul trapped inside it, a Devil Fruit soul."

Koby's eyes widened in surprise. "A Devil Fruit soul? You mean like... one of those fruits with crazy powers? Are you saying the stone is more than just a powerful rock?"

Te nodded slowly, still feeling the energy ripple through his hands. "Yeah, exactly. The essence of the soul inside this stone is intense. It's like... feeling a storm trapped in a bottle. It's chaotic, powerful. There's a will, a presence that's struggling against its confinement."

Koby frowned, his concern evident. "So, what does that mean for us? Is it dangerous? Can we control it?"

Te looked up at his brother, his expression serious. "It's definitely dangerous. This energy isn't something to be taken lightly. But it's also an incredible opportunity. If we can understand this power, harness it—there's no telling what we could achieve. We just need to be extremely careful."

Koby's face softened with a mix of awe and apprehension. "Alright, I trust you. But we need to make sure we handle this properly. We've already pushed our luck tonight."

Te gave a reassuring nod. "Agreed. For now, let's get some distance from here and plan our next steps. We need to figure out how to use this stone wisely."

-----------------------------

Back into their rooms, the atmosphere was heavy with the weight of their recent actions. The boys had returned to their quarters, each lost in their thoughts as they processed the events of the night. The once-lighthearted atmosphere had been replaced by a more somber mood.

"Fuck it let's just test it right now," Te said suddenly, his voice breaking the silence. He sat up on his bed, the Philosopher's Stone resting on the small table beside him. His eyes were fixed on the stone, a mix of curiosity and determination in his gaze.

" Are you sure we don't know how that thing will react with a devil fruit soul in it."

" yeah yeah I know, but we didn't make this stone for us not to use it."

"Fine let's just see if we can turn this piece of wood into metal."Koby agreed, his curiosity piqued despite his reservations.

Te nodded enthusiastically and grabbed a wooden plank from a pile of supplies they had stored in the room. He placed it in front of the Philosopher's Stone and took a deep breath.

"I'm confident in it being stronger than the one in FMA the souls here are much stronger and now that we added a devil fruit inside. The amount of times I can use it might be infinite."\

Koby raised an eyebrow, still a bit skeptical. "You think the amount of times we can use it might be infinite?"

Te grinned, focusing on the stone and channeling his aura into it. "That's what I'm hoping. The energy from the Devil Fruit should enhance the stone's abilities significantly. Let's find out."

The Philosopher's Stone began to glow with a deep, crimson light as Te poured his aura into it. The wooden plank started to shimmer, and the transformation process began. The room filled with a soft, pulsing energy that resonated with the stone's power.

Koby watched intently, his anxiety mingling with excitement. "It's actually working. The wood is starting to change color."

"Yeah, I can feel it working," Te said, concentrating harder. The wooden plank continued to shift, its texture and appearance changing as it transformed into a metal-like substance. The process was slow but steady, and soon the once-ordinary wood had become a solid, gleaming piece of metal.

Te let out a relieved sigh and wiped the sweat from his brow. "There we go. It worked. This thing is incredible."

Koby inspected the metal, nodding in approval. " Dude this metal is stronger looks impressive. I'm going to test its durability."

Activating Elemental Mimicry Koby started to probe the metal by slowing increasing the flame in his to first test its ability to withstand hot temperature.

"Alright, let's start slow," Koby said, focusing on the metal. The flames danced across its surface, creating a soft, orange glow. The metal absorbed the heat without any visible signs of distress. Encouraged, Koby gradually increased the temperature. The flames roared hotter, turning a brilliant white as they seared the metal.

Te watched intently, his expression one of keen interest. "It's holding up pretty well so far. You're really pushing the limits on this one."

Koby nodded, maintaining his concentration. "Yeah, it's impressive. Let's see how it handles even more."

He intensified the flames further, generating a blazing inferno that enveloped the metal. The heat was now immense, but the metal remained steadfast, glowing red-hot but not showing any signs of melting or warping. Koby's brow furrowed in concentration as he continued to push the flames.

Finally, he stepped back, extinguishing the fire. The metal, though heated and glowing, was still intact and unscathed. "This is incredible," Koby said, wiping his brow. "The metal didn't even begin to weaken. It's like it absorbed the heat and reinforced itself."

"With the metal, I can create a strong enough cauldron to begin some of my chemistry ideas and You can start building your lab and starting your inventions." 

-------------

Early the next morning, Koby and Te set up a small makeshift laboratory in the garden behind their house. They were eager to see how the Philosopher's Stone could affect living organisms, starting with some plants they had collected.

Te laid out several potted plants on a table, each representing different species. "We're going to start with something simple," he said, carefully placing the Philosopher's Stone in the center of the table. "Let's see how it affects these plants."

Koby nodded, pulling out a small vial of the Philosopher's Stone essence he had prepared. "I'll apply a bit of the stone's power to the soil," he said, pouring a few drops of the essence into each pot. "Then we can observe how the plants react."

Te watched with anticipation as Koby mixed the essence into the soil. They both stepped back, ready to take notes on any changes. "This is going to be interesting," Te said, his eyes fixed on the plants. "We're about to see how the Philosopher's Stone influences growth and development."

As they waited, the plants began to respond almost immediately. The first noticeable change was a rapid increase in growth rate. The stems stretched taller, and the leaves unfurled with vibrant, deep green hues.

Koby's eyes widened. "Look at that! The plants are growing much faster than normal."

Te nodded, noting the impressive speed of growth. "It's like they're being supercharged. I wonder if it's affecting their overall health and resilience as well."

To test this, Te carefully placed a few plants under controlled stress conditions. He exposed them to high temperatures and reduced their water supply. Despite these adverse conditions, the plants appeared to thrive. They maintained their lush appearance and showed no signs of wilting.

"This is incredible," Te said, clearly impressed. "The Philosopher's Stone seems to enhance not only growth but also the plants' ability to withstand stress."

Koby grinned, observing the results. "If this works on plants, imagine what it could do for other materials or even people. We've just scratched the surface of its potential."

Koby and Te eagerly set to work with the Philosopher's Stone, ready to test its effects on the apple tree. They had chosen a young, healthy apple tree in their garden as their test subject.

Te carefully applied a few drops of the Philosopher's Stone's essence into the soil around the tree's roots. As the crimson liquid seeped into the ground, an immediate reaction began. The soil glowed faintly, and a strange, almost electric hum filled the air.

Koby and Te watched in awe as the apple tree began to change. The young tree, which had been a modest sapling, started to grow rapidly. The trunk thickened, branches extended, and leaves unfurled at an astonishing rate. Within moments, the tree transformed into a fully mature apple tree, laden with lush foliage and promising clusters of apples.

"This is insane!" Koby exclaimed, his eyes wide with astonishment. "It's like the tree is on fast-forward!"

Te nodded, still trying to process what he was seeing. "The Philosopher's Stone must be accelerating the growth process, enhancing the tree's natural abilities. This could be incredibly useful for agriculture and botany."

As the tree reached full maturity, the apples that formed were large, shiny, and seemed to emit a faint, golden glow. The boys carefully picked a few of the fruits and examined them closely.

Koby took a deep breath. "Alright, let's see if these apples have the healing properties we're aiming for."

He took a small cut on his arm and applied a slice of the apple directly to the wound. They watched in amazement as the cut began to heal almost instantly. The bleeding stopped, and the skin started to knit back together in front of their eyes.

Te was equally impressed. "The Philosopher's Stone is doing more than just enhancing growth—it's transforming the properties of the apples. This is exactly what we wanted."

Koby took a bite of an apple himself and marveled at its effects. "Not only does it heal, but it also seems to improve overall well-being. This could be revolutionary."

"With these, I can make recovery pills."

"What are you boys doing here" Bisky voiced out behind them with a hint of curiosity