DISCLAIMER: I don't know if I should do this or not but whatever, I don't own anything here apart from my OC's.
May have grammar errors
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Somewhere in the Grand Line.
In the vast blue expanse that is the Grand Line a lone ship with green body and a white sails could be seen sailing silently through the waters. This was a standard marine ship that at first glance could be said to have nothing of spectacular about it, but if you go aboard this ship you would find out that things are not as they first seemed.
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"Vice-Admiral"
Aboard the ship a marine could be seen carrying a den-den mushi as he saluted a big figure sitting by the side of the mainmast. The figure is that of a tall, tanned, broad-chested muscular gray-haired old man.
This old man is Monkey D. Garp, Vice-Admiral, Marine Hero and also Lucas's Grandfather.
"What?" Garp asked was he ate some donuts
"There is a call for you"
Replied the marine as he passed the den den mushi to him, Garp took it and answered the call.
"Branca?"
Hearing the voice of his daughter-in-law made a warm smile appear on Garp's face, after all how could he not be happy when hearing the voice of a dear family member? However in just a few seconds that warm mile morphed into a furious grim.
"WHAT?!"
The sudden roar of Garp caught everyone in the ship by surprise, to see the easy-going Garp go from calm to enraged made many of them confused and fearful of what had happened.
"ALL RIGHT YOUR LAZY ASSES, TIME TO SPEED UP OUR COURSE TO DRAGON ISLAND!"
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Dragon Island.
"Did you hear that?"
The group of pirates that were pursuing Lucas suddenly came to a stop, their faces went stiff as they heard the roar of what appears to be a very dangerous animal coming from somewhere in the forest.
"Hey B3, didn't you said that this island doesn't have any type of dangerous animal?" asked one of the pirates in fear.
"But it doesn't!"
"So what was is this?!"
The two started discussing with each other before being stopped by another roar.
The roar was like a rumble of thunder making them even more fearful, they didn't know what type of animal was making those roars, but judging by how powerful these roars sounded the owner most likely was very strong.
"Hey guys" One of the pirates in the group called out to his brothers attention to him "Didn't this island had a story about a dragon living here?"
When they first heard of the legend about the Dragon all of them thought that it was just myth created by the islander to attract tourist, which was in fact something quite common in other places. They laughed at how absurd the myth sounded and then tossed the matter to the back of their heads.
But now after hearing the roar they started to have some second thoughts about it.
"Yeah I heard that too"
"I also heard"
"But it can't be true, right?"
B3 became flustered seeing his comrades, he wanted to yell at them and say that a Dragon being real was just absurd, but he couldn't. Because just like the others he also had been stunned by how powerful the roar sounded, and like the others he too started to think that maybe the Dragon was real.
'Why this is happening now?!'
It was his fault that the eternal pose of their captain was broken, he knew that he needs to catch the white haired young man so that he could pin all the blame on him and save his skin from the captain's rage.
The young man was good he gave him that, the white haired kid managed to run for them, making them lose his trail inside of the forest.
But they had the advantage in numbers and eventually they would find him, unfortunately just as they would follow his trail this roar stopped them on their tracks.
"Hey guys, there is no such thing as D-"
Turning back B3 tried to convince his fellow pirates to resume the pursuit, but he stopped mid-track what he was gonna say after he saw the looks of fear on them as they looked at something behind him. He turned his face to see what was behind him, he immediately regretted his action.
"Dragon…"
Four meters in height with black scales all over his body, bat-like wings on his back and the head similar to one of a carnivore dinosaur, grey eyes that would from time to time have flashes of blue light, giving those who look at them the impression of gazing at a stormy sky filled with lightning.
The being behind B3 was, of course, Lucas that after eating the devil fruit inside of the cave became the Lightning Dragon and decided to properly deal with the group of pirates.
Using the moment of shock created by his appearance Lucas made a move, swing his right hand (claw?) at a speed faster than a normal person could react he struck the pirate B3 square in the chest.
"Ugh!"
The blow sent the man flying away like a bullet, passing over the heads of the other pirate before hitting a far way tree "Crack" was the sound of tree breaking upon the impact.
The pirate B3 could be seen in the remains of the tree, in his chest where he was hit a big mark in the shape of a dragon claw could be seen, his eyes rolled to the back of his head.
"Oh my God!"
"How is this possible?"
"B3 his down!"
"One Hit…"
Seeing how easily B3 was dispatched by Lucas made the other pirates panic even more, some started to flee while others tried to eat the bullet and started to attack the Dragon in whatever way they could.
Bang
Bang
Bang
Bullets got continuously shot at Lucas, but no result came from that. No matter how much bullets are shot no harm came to him, his scales tanked all of them without gaining not even a single scratch.
"AHH!"
Taking advantage of the moment that Lucas was sending three more pirates way another pirate appeared behind him, sword in hand he attacked Lucas's back with an overhead swing.
Break
But one more time Lucas's dragon scales tanked the damage, the blade of the sword shattered at the recoil.
"Hmm…" Lucas turned his head back and looked at the pirate behind him, using his tail he smashed the pirate to the ground without even turning around "Time to finish this mess"
As he said that bue lightning started to appear around around his body, he opened his maw to show a bright glow coming from down his throat.
Before the remaining pirates could understand what was happening a big blinding blue light engulfed them.
[Lightning Dragon Breath]!
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As the group of pirates ran all over the island after Lucas their captain, Goldilocks, returned to their ship and he waited for his crew return, and while doing so he pondered over and over how the situation had escalated to this point.
He originally had been part of another pirate group, but after a clash with a marine ship all the pirates in the crew ended up meeting their end... all but him.
In a struck of luck he ended up avoiding the other's fate on the prison, and after a time scurrying around he eventually built his own crew, and after another struck of luck he found the map and eternal pose leading to the treasure of a famous pirate.
All was going fine until he came to this island.
Just as they stepped in this small bar calamity fell onto him. The key to his rise, the eternal pose, ended up shattered. Worse, the culprit escaped just under his nose.
He sent his man after the white haired young man, but it had been more than an couple hours since then but nothing of them coming back.
'Somehow even dozens of pirates are not enough to catch one young man'
BOOM!
"What was that?"
Just he was thinking about his frustrations an explosion that sounded like a rumble of thunder suddenly rang from the forest in heart of the island, stunning not only him but everyone that was on the island.
But whatever caused this explosion was not going to give him time to properly thing what happened, a black shadow suddenly flew from the forest in his direction.
"WHAT?!"
The black shadow flew at astonishing speed and appeared before him in no time.
"Thi-this is not possible…"
Said Goldilocks in shock as he took in the image of the Dragon before him, shock that only grew large was the being suddenly started to talk.
"Not so great now huh?" said Lucas in a voice similar to his own but with a tad more power behind it.
"Who are you"
The captain Goldilocks started to walk backward almost falling on his butt was he asked in a quivering voice.
"You don't recognize me?" Lucas smirked in amusement "So you already forgot about the eternal pose?"
"IT'S YOU!" Goldilock's eyes grew large at the mention of the eternal pose, instantly he discovered who the Dragon before him was. But even them his shock has not lessened "Y-you are a zoan user?"
"I'm now" Lucas smiled at the captain "I really need to thank you, If not for you sending those pirates after me I probably wouldn't stumbled across the devil fruit that was calling to me for so long, so to you Goldilocks I'm sincere grateful. Still, your actions here in my home still need to be accounted for"
Understanding the meaning of those words Goldilocks started to panic, he fell to his butt and flailed his arm around while screamed
"NO, NO, NO... WAI-"
[LIGHTNING DRAGON BREATH]!
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Dragon Island Town.
Many residents of the island are now gathered at the port, with widened eyes they gazed at the scene before them.
Earlier news had been spread that a group of pirates was causing problems at a bar, threatening the owner Old Will and later even chasing Lucas, a young man very well in their humble community.
Many contacted the marines in haste so that they could come and deal with this group of pirates, but just one hour after everything began a big explosion rang from inside the forest. They saw a shadow fly from the forest, then after that another explosion came from the port.
When they came to the port the scene that greeted them was something completely out of their expectations.
"Is that what I think it is?"
"Heavens!"
"The legend is true!"
"The Lightning Dragon is real!"
A Dragon with shape of a human stood there in the port and gazed at them, the captain of the pirates laid passed out in the ground a couple of meters way in front of him, the ship of the pirates behind him in the water burning away into nothing.
If they shock wasn't already enough another scene happened to completly stun all of them.
The Dragon started to shrink in size, the scales all over his body gave way to human skin, his tail and wings vanished from his back, his claws became normal hand, then for last his head returned to that of the white haired young man that all of them knew for fifteen years.
"LUCAS!"
Branca shouted her son's name as she ran forward and enveloped him in her embrace as tears of joy fell from her face
"I'm okay mom" said Lucas as he started to comfort his mother
"What happened to you" Branca started to caress his cheek "Are you fine? What happened with the pirates? Why did became you became a Dragon?"
Like any other worried mother Branca started to assault her son nonstop with questions, Lucas opened his mouth to answer them when one of the poeple in the crowd cried out "Look, is a marine ship!"
He turned his head back, and sure enough, there was the standard marine ship docking at the port.
Whhoosh
Just as the ship docked at the port the figure of a muscled old man could be seen jumping from the ship and landing before them.
"I want to see what fool is the one that had to guts of touching my grandson! When I got my hand on you I wil-"
The figure walked a few meters forward while cracking his knuckles before stopping midway as he took the scene before him. A white-haired young man with a goldilocks man in the ground before him and a destroyed ship burning behind him.
The old man gazed dumbly at the scene for a few seconds before falling in boisterous laugh
"Bwahahaha! That's is my grandson!"
The old man was, of course, Monkey D. Garp.
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Sometime later.
"So you ate a Mythical Zoan-Type devil fruit?" asked Garp from behind a pile of plates full of food.
"Yes, I believe is the Lightning Dragon devil fruit"
Following his mother and grandfather Lucas went to his home after the latter left his crew the problem of solving the mess with the pirates, there Lucas told what had happened with him. From the clash in the bar to the chase across the island, and finally to when he ate the dragon devil fruit.
"Mythical Zoan? This isn't the type of fruit more rare that even logia type devil fruits?" asked Branca as she arrived with some more plates.
"They are. As the name suggests this type of devil fruits would give the powers of a mythical or legendary figure to it's user, basically making anyone who ate them a copy of said mythical beings. I myself know someone who ate one of those" after explaining Garp swallowed one more plate of food "Those who ate this type of zoan are sure to become some big monsters"
"So strong?!" said Branca with her hand on her mouth.
'This is more intense than what I had expected' Lucas gulped at the information, even though he knew this bit of information from his memories, hearing the same from the mouth of his grandpa gave him an entirely new feeling.
"So what you are gonna do now?" Lucas perked at his grandpa's question, looking up Garp stopped eating as a rare serious expression came to his face "Like I said, the type of power you now hold is really big, your future became even more limitless now. If you want to make a choice for the future the best time is now"
"…"
Lucas became silent at the question, even though he had thought over and over about what he wanted to do in the future this question had still struck him deeply.
His soul was originally from another world, arriving in this world of One Piece after an abrupt end. Lucas always thought in making the best of this second chance of life, live a life of adventure where in the future he could look back and take pride of what he experienced.
At first he wanted to join the marines simply because he thought it would bring the most benefits for him in this crazy world, maybe if he arrived at rear-admiral or vice-admiral he would be able to better use his future knowledge to help others.
But after he felt the power of the Lightning Dragon running through his body he started to have new ideas.
'Why not aim higher?'
Even though his memories about the canon of One Piece continued to vanish with each passing day the knowledge that it provided makes for a really good weapon, and now he is a user of the rarest type of devil fruit in the world, who knows where he could arrive? What adventures he could live?
Furthermore, now that he had this power he couldn't just sit still while others out there cry out for help. The strong have the sacred duty of protecting the weak, and now as someone with immense power he felt that if he failed in doing this duty he would be no less than an disgrace not worthy of the second life he gained!
"I want to have a fulfilling life, sailing across the world to live many adventures. To have a life that I could look back and be proud of it, and to do that I need to fully master this power that I now have" said Lucas with a firm and convicted tone "I also want to follow father's footsteps and eventually avenge his death!"
'Lucas…'
Branca felt tears fall her face as she watched her son make the decision of his life.
Garp grinned at Lucas's words, catching what his grandson mean with them "So you want to join the Marine?"
"Yes!"
"GOOD!"
Garp stood up as and laughed.
"But I'm not going to be a normal marine either, I want to reach fleet-admiral rank!"
"Aiming so high from the start huh? I like that Bwahahah" Garp laughed some more "Why do you want to become fleet-admiral though?"
"I want that because…"
Lucas also stood up, a wide draconic grim adorned his face at that moment
"Because I want to see what will happen if a D; arrived at top of the marine!"
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So yeah, here I'm again. So Lucas ate the Lightning Dragon devil fruit (have in mind that it was his hybrid from that he used in the chapter) and is about to enter the marines, so to see what will happen if a D. arrived at the top of an organization like that, this is basically the main objective of the fic. Next chapter will be a training type one, because I sincerely think that is something needed, as one of the biggest turns off in a fic like this is when the MC became too OP all of the sudden, so I plan(try) to take some time to properly build up his strength.
He probably will train for one year with Garp before oficially entering the Marine. At that time we would be at distance of four years from the start of the canon, which is a time that I plan to use to not only build his power, but also to build his relationships with the many characters of the One Piece World, most likely making him build his own marine crew.
If any of you have any sugestion o review about the fic or my grammar please fell free to say.
Thanks for reading.
(PS: I don't have schedule for this thing)