Hope you all enjoy :)

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Disclaimer- I own nothing :(

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Chapter 4- The Favour

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The moment the news about what had happened at the Mermaid Café reached him, Jimbei rushed to the scene with a feeling of dread in the pit of his stomach for what this might lead to. It wasn't the government he was worried about, after all to arrest someone for killing Slavers would mean the Marines admitting that slavery still existed, something that they would never do.

No, what he was worried about was the effect this would have on the boy himself, and the people that had witnessed it. While he had no sympathy for Slavers, Jimbei knew the fact that the people deserved to die would be of little comfort to Naruto when the full extent of what had happened hit him, and that could cause a lot of problems.

They couldn't even bring Shirahoshi if the boy lost control.

Not only could she not control her power, or even know she had it for that matter, but it was no longer safe for her to leave the Hard-Shell ever since Vander Decken had started trying to kill her by throwing giant weapons that somehow always seemed to hit the tower.

That meant if he lost control, they had no way to stop him.

Now Jimbei had never been one to listen to rumours, knowing that people tended to exaggerate stories more and more until they barely held any true, but this time he wasn't so sure. After all, it had only been an hour since the incident happened, how much could it have been distorted in such a small amount of time?

People were already talking about it, the little reputation Naruto had built for himself over the last week starting to become something more, he had even seen several people partying in the streets at the news of the Slavers being killed. At this rate the boy would become a legend reaching to the heights of Tiger himself!

When he finally arrived at the Mermaid Café, it took Jimbei several minutes to push his way through the crowd that had gathered outside the building, the only thing stopping them from rushing inside being the Royal Guards lined up in front of it trying to control the masses. The moment they saw him pushing his way through, the guards stood at attention and made a small gap for him to pass by them, not even questioning way he was there.

Once he was out of the crowd and passed the guards, Jimbei spotted the Minister of the Right waiting for him next to the front doors, which had a sheet covering it seeing as the Salvers had broken it down when they attempted to raid the place, and didn't miss the fact he was a lot paler than normal.

"How bad is it?"

Seeming to come out of some kind of daze when he heard Jimbei's voice, the seahorse Fishman put his full attention on the captain of the Sun Pirates, seeming to be glad for the interruption to his thoughts.

"Jimbei-sama, I am afraid it is worse than we could have imagined, thirty Human Slavers dead, with every mermaid working here being witness to him using that power, along with several Fishmen that were customers at the time of the attack."

That made the large Fishman's eyes widen slightly, the rumours he had heard had said it was only thirteen, but before he could ask anything the Minister continued.

"We had interviewed most of the Mermaids what witnessed the whole thing, according to them the fight lasted only five minutes at the most, the boy using his speed and strength to tear them to pieces. Luckily his rage was only directed at the Slavers, so there was no civilian casualties, but I must warn you it is not a pretty sight in there…"

Feeling his own face going slightly pale at the man's words, Jimbei gave a small nod before quickly stepping through the sheet into the Café, only for his face to lose all remaining colour in a second.

To his right was a pile of human bodies and parts, all haphazardly thrown on top of each other without much care, a cage that had been knocked over with several bars looking to have been torn off to his left, and everywhere else was just covered in blood. In all his years as a pirate, Jimbei had never seen so much blood in one place in his life, it was everywhere, and even the pools had turned red.

Taking a large gulp to stop the vomit threatening to jump out his throat, Jimbei slowly walked further into the room, slowly taking in and putting the scene together in his mind from how the blood had pooled, the full extent of the slaughter getting clearer and clearer as he did. When he finally reached the back room, another sheet being used as a makeshift door, he found himself hesitating, unsure of what he would see.

Taking a deep breath, his eyes returning to their usual hard steel like expression, Jimbei pushed the sheet out of his way and walked into the back room, only to pause at the sight that greeted him.

It seemed that every mermaid that worked at the Mermaid Café was there, some sitting on the ground, some floating in the air with bubble rings, but all with expressions of worry on their faces as they stared at the small from of Naruto laying on a large red cushion in front of a frowning Shyarly. When they noticed he was in the room, the gathered mermaids all slowly started to leave, sending worried looks back to the blonde tiger shark as they did.

He waited patiently for all of them to leave, and when they did moved forward and sat on the ground crossed-legged next to the twitching form of Naruto, who he could now see was grimacing in pain. For about ten minutes, neither he nor Shyarly spoke, just watching the blonde quietly with sad expressions on their faces.

"They are all worried about him, you know…"

Finally looking at the giant mermaid towering over him, Jimbei met her hard eyes with his own, while inwardly being glad that the mermaids seemed to be taking what Naruto did in a good way.

"…I am glad he has such a loving family to care for him now, I admit I was worried about how they would react to what happened…he will need the support."

He didn't miss the slight flinch from Shyarly at the mere mention of the incident.

"Indeed, if anything it has made them feel more protective of little Naruto-chan…especially after seeing him start screaming and clawing at his own skin when the fight was over, several of my girls fear he was having some kind of seizure…"

Hearing the silent question in her words, Jimbei let out another deep sigh before shifting slightly on the ground so he was more comfortable.

"Despite the fact he has the power of The Seakings Rage, Naruto is still too young for his body to use it. When it activates his body tries to expand his muscles to increase his strength, buy his young body is unable to except the transformation and tries to fight it. This makes his body be at war with itself, leading to immense pain and damage that, while it heals quickly and without lasting effects, still puts a lot of strain on him. Until he is older and his body more developed, Naruto will be destroying himself every time he uses that power, only to be rebuild again because of his healing."

Pausing for a moment to let the information sink in, Jimbei let out another deep sigh before staring up at Shyarly, his eyes hard.

"What did you tell the other girls?"

Frowning slightly at the large fishman in announce, though understanding why he was asking such a question, Shyarly gave a small shrug as her gaze returned to the small blonde laying in front of her.

"Nothing, don't forget that the Seakings Rage is not even a legend anymore, very few people know of it and even less know what it actually is. They think it was some kind of adrenalin rush, I saw no reason to correct them given the circumstances…"

Nodding his head in gratitude, the captain of the Sun Pirates gave the boy one last glance before slowly getting to his feet.

"You know what he did here today will causes a ripple effect through the world, talk of it has already spread throughout Fishman Island and more than likely the Fishman District too. Before long it will spread to the surface and the humans will know, and while the government can't do anything to him without publically indorsing slavery, they will be keeping an eye on him."

Instead of the worry he has expecting to see on her face, Jimbei was surmised to see a small, slightly menacing smirk on her lips.

"Let they try Jimbei, little Naruto-chan has just cemented himself in the hearts of the mermaids he saved, along with everyone else that has suffered at the hands of Slavers. Not only that, but word of this slaughter will reach the ears of other Slavers, making them think twice before attempting such a thing again. While it saddens me that one so young was forced to do such a thing, I believe it will have an even bigger effect on the world then you realised."

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Things returned to normally fairly quickly after the Royal Guards removed the bodies, the Café was cleaned of all the blood that had been left behind, the damages fixed, and before long business was back to normal. At least, to some extent. Everyone had heard about what happened to the slavers and none were eager to be on the wrong side of Naruto after that day.

The amount of fights each day went down to only two or three, and they were all just drunken drawls that were easily taken care of. But it wasn't fear that had inspired this change, but respect, from both fishman and humans.

Neither group had any love for slavery, the trade having effected both races for as long as anyone could remember, and they all respected the boy for standing up and stopping what would have been a devastating loss to Fishman Island if those Slavers had gotten away. In fact, it had actually brought several Fishmen and Humans that would normally never have even looked at each other together, their mutual hatred of Slavers giving them some common ground to stand on together.

But all Naruto cared about was keeping his new family safe, whether it be threats from Humans or Fishmen made no different to him, and it was with this thinking in mind that Naruto started training in secret, Having felt…whatever it was that had gave him that power boost twice now, the young tiger shark had started to figure out where it came from, and was working from there. Every day after work, Naruto would sneak off and make his way to the Sea Forest, train for a couple of hours, then go home.

And every time he tried to use the odd power, either his body would start screaming at him to stop, or a quiet little voice in the back of his head would tell him to start pulling up trees and throw them around until the pain stopped. This had also lead to many trees being uprooted from the ground, along with boulders and one unfortunate Seaking that had been passing by getting a nasty headache.

It was getting so frustrating! He had been doing this for a month and all he had to show for it was muscle pain, an angry Seaking and a small clearing in the forest!

"Yah should try focusing it in yah arm, give yah body time to adjust to it, and build it up from there one limb at'a time."

Turning around at the sound of a voice, Naruto felt his eyes widen at the man in slight shock, before taking a step back.

He looked like a Great White Shark Fishman, with frizzy black hair that fell to his shoulders and a large smirk on his face, showing off his teeth. He wore a reddish brown shirt with the buttons undone, leaving his pale white chest exposed, blue shorts, a pink hat and white scarf around his neck.

Naruto could see the almost hungry look in the man's eyes as he stared at him, as if he was a salmon he was about to eat, and the smirk turned into a full blown grin when he took another step back.

"Did'yah hear me kid, I said yah need to focus it to one body part at'a time. Walk before yah run squirt."

Still not sure what to make of this stranger suddenly appearing in his training ground, never taking his eyes off of what he could feel was a powerful opponent if he made the wrong move, Naruto did as he said and slowly started to focus the power to his right arm.

For a moment nothing happened, and he was about to give up when his arm erupted in pain, spreading from his shoulder and moving down to his fingers and up to the right side of his face. Finally turning his attention away from the man, Naruto looked at his arm to see black veins spreading under his skin.

The pain got worse, as suddenly the muscles in his arm expanded, the arm growing slightly longer to accommodate the new muscles, then the pain was gone, replaced by a slightly numb feeling. He also saw that the nail on the end of his fingers had lengthened, turning into claws. What he couldn't see was that the veins had also spread across the right side of his face, his eye turning red and giving off a slight glow, and his teeth getting longer.

Throughout the whole thing, the man had just stood in the same spot, watching with a grin on his face and hat shadowing the top half of his face.

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Seven Years Later

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The moment Jimbei walked into the Café, Naruto knew something was bothering him, both feeling it with his Haki and seeing it on his face as he made his way through the café. He didn't pause in his playing, his finger gliding over the piano keys with practiced ease even as he focused his attention on the man that had become like and Uncle to him. Their eyes locking from across the room, Naruto saw the slight tilting of the large Fishman's head, before he walked over to an empty table in the far corner of the room where no one else was around.

Naruto had changed over the last seven years, his body changing from a skinny child into a slightly muscled pre-teen. He wore an orange sleeveless hoddie, with the front undone, his scared chest open for all to see, with black shorts. He had also started to grow talons on his elbows and keens, even if only small and the strip like markings had darkened over the years.

His training in the Sea Forest had been paying off.

He knew Jimbei had figured out he was training years ago, and that for some reason he didn't like the fact Naruto was trying to learn how to control the strange power, but he never pushed for answers or actually tried to stop him doing it.

Ever since he met Hordy Jones, his training had been going great, though he didn't like the man himself. Hordy reminded Naruto of the gang that had taken him in back when he was living in the Fishman District, cruel, dark, but necessary. He was always spouting Fishman superiority over Humans, trying to convince him of how they were better and should be in charge. Over the year Naruto had just learn to block him out.

The man was useful to his training, beyond that he didn't care what he did.

Finishing the song he had been playing when Jimbei walked in, Naruto got up and slowly made his way over to the table, trying not to draw too much attention seeing as the man obviously wanted to talk to him in privet. After he sat down cross on the opposite side of the table, they both took a moment to examine the other, having not seen each other in several months. Jimbei was the first to brake eye contact, telling Naruto that whatever he was hear to talk about, he wasn't happy to be doing it.

Finally letting out a deep sigh, the large Fishman leaned back in his chair and spoke.

"I need to ask a favour of you, Naruto-kun…"

Seeing he had the boy's attention, he reach into the inside of his rode and pulled out two sealed letters and a piece of folded up paper.

"There is a Fishman, an old friend of mine in fact, he has become something of a monster and needs to be stopped. It is my fault he is out in the world, but at the same time due to my role as one of the Seven Warlords of the Sea I am unable to confront him about what he has done and is still doing. The favour I am asking you is to diver this letter to him, and if after reading it he still will not change give him the other…I ask that you use your own initiative on what you think needs to be done after that..."

They both knew what that meant, if Naruto didn't like what was going on, he would kill whoever this man was and anyone that tried to stop him. The blonde tiger shark, while young, was a firm believer that you could only give someone so many chances before there was no hope for them.

Nodding his head, Naruto reached out across the table and took the letters, putting them in a pocket before waiting for Jimbei to tell him the rest.

"Thank you Naruto-kun, his name is Arlong, and he has set up a base on Conomi Islands in the east blue. I know this will involve you leaving Fishman Island for longer than you would like, but I have arranged for several of my men to stay and guard the Mermaid Café until your return."

Though he hesitated this time, Naruto still gave a small nod after a moment of thought, and this time Jimbei handed him the piece of paper. Unfolding it, Naruto found himself looking at a wanted poster, with the picture of a Sawshark Fishman with a 20,000,000 bounty on his head.

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It took about two weeks for Naruto to swim from Fishman Island to the east blue, and thankfully he had remembered to pick up an Eternal Logpost for Conomi Island, and had had one for Fishman Island implanted in his arms years ago so he wouldn't get lost. The letters Jimbei had given him was made from a special paper from Fishman Island, so they were both waterproof, and were safely tucked into an inside pocket of his vest.

Moving through the Calm Belt had been easy enough, for some reason Seakings had always avoided him for as long as he could remember, and had shorted his journey by several day, and the rest was thanks to the underwater currents adding to his already impressive speed.

When the Island came into sight, Naruto made his way to the surface a far distance away so that he could get a look at it, and instantly knew where he needed to go to find his target, the large tower like building with the sigh 'Arlong Park' giving it away. He also noticed that a little further down the Island was what had once been a town, until all of the houses were flipped upside down that is.

Frowning, Naruto swam towards the large gates leading straight from the sea into Arlong Park, obviously an entrance designed for Fishmen to use, only to pause when a large sea cow went flying over his head, disappearing into the distance. Turning back to the gate, Naruto saw a large number of Fishmen, most of who appeared to have been knocked down, along with three humans, one of which had his feet deeply imbedded into the concrete floor.

Then he saw his target, walking over to the man with the straw hat with his feet stuck, laughing as he lifted both him and a large amount of the concrete under him over his head, preparing to throw him into the sea.

Deciding to stop whatever was happening, Naruto increased his speed and appeared next to Arlong, shocking everyone around them at his sudden appearance, and causing Arlong to pause in his throw. Now that he was on land, Naruto also saw a large crowd of humans, all carrying makeshift weapons, stood at another broken in gate.

Frowning down at the young blonde, Arlong lowered his arms slightly, still holding both the rock and man off the ground, before turning to face him with a raised eyebrow.

"Who the hell are you, a new recruit or something? I'm kind of busy right now, encase you haven't noticed!"

Tilting his head to the side, pretending not to understand, Naruto pulled out the wanted poster and held it up next to the annoyed Fishman's face, taking a moment to look between the two before nodding to himself. While this was going on, everyone else seemed unable to do anything but watch the strange blonde Fishman, confusion clear on all of their faces.

Putting away the wanted poster, Naruto reached into his pocket and pulled out the first letter, watching was Arlong passed the still trapped man to one of his crew, an Octopus Fishman with light pink skin before taking the letter with a growl.

"This had better be important brat, I've got Pewmen's to kill…"

Tearing the letter open with his nose, Arlong quickly read over the words, his frown changing to a smirk, before he let out a loud laugh.

"Ha! That oversized guppy Jimbei sent you! HA!"

Without looking at the boy, Arlong tore the letting to pieces, before throwing it back in Naruto's face, his smirk bigger than ever.

"You go and tell Jimbei to shove it up his blowhole, he ain't the boss of me, I do what I want, where I want and when I want, got it!"

Tilting his head to the side, Naruto shrugged before handing him the other letter, Arlong getting more and more annoyed by the second and ripped it out of his hand. Opening the letter, the Sawshark Fishman frowned at the two words written on it.

"I'm sorry"

Looking back at the blonde boy, Arlong shoved the paper in his face, shouting.

"What the hell is this supposed to mean!"

Frowning, quickly thinking back to both the upside down town and the apparent mob of humans stood at the broken down gate, Naruto made his decision a grabbed Arlong's wrist, tightening his grip.

"Hey! What the hell are yo-AAAARRRR!"

A long creaking noise filled the air as Naruto broke the larger man's wrist with nothing but a small flexing of his fingers, bring him to his knees in front of him, before slowly pulling his arms back and slamming his fist into Arlong's jaw. With another loud crack, Arlong was sent flying back into the tower, through a wall and disappeared in the smoke.

Everyone who saw this could only star with wide eyes, jaws on the ground as they watched the blonde tiger shark slowly walking towards the new hold he had just created in the wall, only to stop when a large manta ray Fishman move to bloke his path.

"Where do you think you're going brat, you think I'll let you attack our Captain without retaliating! You're a traitor to our species!"

Lunging forward, the manta ray Fishman aimed a punch at the smaller blonde, only for him to disappear in a blur and reappear behind him, faster than anyone could see. For a moment, nothing happened, the large Fishman just standing still with his arm stretched out, before his eyes rolled into the back of his head and deep slashes appeared over his entire body, before he fell to the ground with a wet splat as the blood pooled around his mow limp form.

Bending down to wipe the blood off of his knife on the dead Fishman's shirt, which the people watching had only just seen he was holding, Naruto stepped to the left just in time to avoid the giant blade that had been about to slice him down the middle without even looking, a now enraged Arlong holding the handle with both hands. Still not looking, Naruto side stepped again when the blade came round for another swing, then on the third held up his knife and stopped the much larger weapon in its path, seemingly without effort.

His eyes widening in both shock and slight fear, panting as the cuts and bruises he had gotten from being thrown through the wall, Arlong started to shake slightly from the effort of holding the smaller blade off.

"WHAT THE HELL ARE YOU!"

Finally turning to look at the older Fishman, the blonde boy concentrated for a moment so that his eyes would change colour, causing Arlong to flinch. Taking advantage of this, Naruto moved his knife o that it sent Arlong's giant sword up, before quickly closing the distance between them in a blur of motion and slashing him across the stomach. The world seem to go into slow motion for a moment, though this time it had nothing to do with his powers, as the blood from the wound he had just opened shot into the air, some of it hitting him in the face, and Arlong's eyes widened even further.

They held eye contact for a moment, wide fearful eyes staring into cold indifferent, before Naruto decided to finished the fight. Still moving faster than the eye could see, Naruto stabbed his knife up to the hilt into Arlong's chest, piecing his heart and killing him instantly.

Stepping back, taking his knife with him, as the now dead Sawshark fell forward, Naruto again wiped the blood off of his knife before looking around at the other Fishmen. They all flinched away from his look, several actually falling over in fear, and when his eyes landed on the Octopus Fishman be quickly put the straw-hat wearing man down and backed away.

His mission done, Naruto put his knife away, picking up the now blood stained second letter, and without a word jumped back into the water and swimming away.

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Hope you all like the chapter, sorry it took so long.

R&R :)