Pre-Time skip

It was a Peaceful Day on the Thousand Sunny, They had been Sailing for over a week and had yet to see a Land Luffy and Ussop was lying on the Deck both panting after they are playing tags , Zoro was having his usual Daily Training, a Little away from him is Robin and Nami lounging in the beach chair, Chopper was taking a stock, Franky was Repairing the hole in the ship left over a Fight between Sanji and Zoro in their Usual Arguments and Fights that which luffy ended up in the middle of and got kicked through the Floor and Brook was working on a New song

"Sanji Fooooooooodddd Is it Lunch time yet? "Said Luffy

Some of his crew Smiled it was always Predictable when it comes to Luffy about food whenever he is Hungry 

Sanji hit Luffy in the head with an Irritated Expression "Can you wait will ya" Said Sanji as he Returned back to the Kitchen

"You know" Robin Begun to speak "From what i heard on the last Island we are getting close to a spot that the Atlas Pirates were spotted few days ago"

as soon as her Words Get out of the Atlas Pirates everyone stop of what they are doing with Luffy with half a Mouthful of food diverted his attention towards all of his Attention to Robin the Second the word Atlas Pirates left on her mouth

"Do you mean the Atlas Pirates, B--- But those People are Led by a Yonko called Ronan as their Leader" Nami Stuttered at Robin as Robin Nod in Confirmation

"Who's Ronan?" Said Chopper

"Ronan also known as the Titan is one of the Yonko" Usopp shouted "He is said to be Equal to Roger and Whitebeard in their Prime!, and now He is Older and stronger than ever before! and now he was here?! We need to Turned around and Wait it out. Maybe in a Month it will be safer and W--- What if they are still here?!"

"He was known as Titan because of his Power that he could could go toe-to-toe with the likes of Roger, Garp the fist, Sengoko and Whitebeard and that's just their Prime days and Ronan was not, and he is just a Mere Admiral at that Time the youngest one at that when he is 23 years old before he Becomes a Pirate "He even destroyed Several Marine Fleets, and Toppled Kingdoms because they piss him off and did i Mention That he could Rival against the likes Mihawk and Shanks when it comes to Swordman?"

"W-What Really?!" Said the Terrified Chopper at the Monster of a Man "A Yonko?" Usopp nod

Everyone was a Silent for a Moment thinking over of what to do "I-- I'm sure that Ronan won't both with just lowly Pirate on his List, after all he is a Yonko a Very Powerful Pirate that even the World Government won't try to Provoke" said Nami

"I Agree" Robin agreed "I've met with him before, as long we don't Provoke we would be Fine after all he is not a Man who would attack first unless he has a Grudge on you" Said Robie with a small blush on her face "He would likely won't take any Interest on us"

The Crew Titled their Head in Confusion when she blush but they Shrugged it off

"Well a Former Marine into a Yanko? I'll be Dammed" Said Zoro as he cross his arms As he glance at Robin "Say, is he Really going to attack us?" He ask

Robin shook her head "No, as long as We don't have the Bad Reputation we'll be fine, and he is a Man who Hates the Celestial Dragon more than anyone else" Said Robin

Sanji Sat down having Cleaned up while they are talking"We wouldn't have enough Supplies to last us if we delayed going  to the island, as it is we only have 2 Days worth Left" said Sanji in his Calculation it would be longer if Luffy Started not to Eat too Much that which is a Wistful Thinking for Sanji

at that Comment everyone looked at Luffy expecting a Reaction from the captain at the Mention of possibly running out of food but to their surprise he looked like he was contemplating something not even listening of what they are saying

"Oi Luffy" Zoro tried to get his Attention as he put his hand to Luffy's Shoulder giving a gentle shake as if trying to rid himself with the though seemed to do the trick as he glance at his Crew

"You say that the Atlas Pirates's Captain was Spotted? a Few Days ago right?" Said Luffy he got a Nod from his Navigator and with his Usual Smile the Excited one who always have know no Fear "Well what are we waiting for?  Full steam ahead! I want to see their Captain  with my own eyes" he said as he got up and rat out from the room 

The rest of  the Crew looking around at one another with Bewilderment and Nervous Expression after all they are gonna going to met with a Yonko one of the most Powerful Pirate in the World

Franky was one the first one to speak and break the silence "You Guys... his not serious Right?" Said Franky Nervously with a Stutter

Everyone Nod as Nami stand up "That Idiot better not get us into trouble with the Atlas Pirates, we Barely Escape Garp the fist Luffy's Grandfather and now we are gonna met with the strongest Pirate Crew of the world for all we know they could destroy us with one Blow" Said Nami

_______________________________________________________________________________________________________

Next Day

In was in the Next Day, Usopp was in the crows Nest, staring the ocean for any possible sighting whether it to be Ships or island, as he is staring he spotted something in the distance

"O- Oi guys! i think i see something!" Said Usopp as he shouted down to the crew, they all Gathered at the side of the ship where usopp was pointing at

All of them Gasp at the Ship that they are seeing now "is--- is that Ronan's Ship?" Said Nami in a Shaking Manner

"Of course that's his Ship" Said Robin with a Smile as well as Calm

"WHY ARE YOU STILL CALM!?" Said Usopp "Don't you see how Huge that ship is?!"

"It--- It's Gigantic!" said Franky 

"The last time we Encounter such Massive ship is the Thriller Black" Said Zoro who is also Wide Eyed

"Except this One is truly a Ship Rather than an island" Said Sanji as he had Drop his Cigar 

True Enough the ship was Truly Gigantic, it's size is 2,000 Meters on height and 2,250 Meters of Length with Hundreds of Cannons on it's side along with Turrets with 3 Each cannons

(Imagined the Figure is the head of an Eagle it's jolly Roger is an Eagle is the Background with it's swings Spread along with Musket and a Sword with shield In front of it with the Skull Face on it and Dark Blue Coloring) 

"it looks Advance" Franky Comment "Just like Sunny as i have Remembered"

"W--- What do you mean?" Said Nami

Franky Glance at her "It's i have participate of Building that Ship along with some of the Best Shipwright in Water 7 and not to Mention the Ship itself construction was a Secret, that even the World Government does not know it's Existence" Said Franky  "And all it's hull are Made of Pure Adam Tree"

"You mean to tell me that it's as advance and Durable as the Sunny?!" Said Usopp who is shaking

"No, it's more Durable than the Sunny, and i could not Imagined the Cost of Money just to Even Build such a Ship, this Ship has been Built when Ronan was still an Admiral when he amass such Vast Wealth after Capturing Many Pirates with Both high and Low Bounty"

"And conclusion that's his Fl--- Flagship?" Said all the Crew Beside Luffy and Franky who are shaking

Franky Nod his Head "That's his Flagship the Ship Name is Soverien built to be base of Operation and Warship to Dominate the Sea, and Truly Deserving for it's Name for it is a Nation even to itself" Said Franky

The Enormous Ship was not alone, it has a Fleet of Ships Sorrounding it, they Recognize some of them to be the Marine Battleship while others are Not, along with it are flying Ships are the Gunships that Float above it

"That's a Huge Fleet" Said Chopper with a Sweat Drop

The Flagship begun to turn towards them

"It looks like it's Changing their Direction!" Said Sanji as the Ship becoming Larger and Larger as it is Approaching them Fast, despite it would be Impossible due to it's Size but it appears to be Fast

"Luffy!" Nami called their Captain who was leaning against the Railing staring at the ship with Excited Grin "We need to Change Course and Try to outrun them! there's no way we can face---" She was cut off

"No" Luffy Interrupt her "Keep our course Let them come to us" Said Luffy

"WHAT?!" The Crew Yelled to Luffy

Zoro Stepped forward "Luffy look you can't fight them, He maybe a Yonko but what if he tries to attack us?, they are a Lot stronger than us right now especially their Leader Ronan he is a Yonko!" Said Zorro

"Well i know about him" Said Luffy

"Well then you know that we can't fight him, a Man who have fought the likes of Roger and Whitebeard is not to be Provoke of" Said Nami, Luffy din't face resuming his Earlier Position, she sight as she looked to the crew who have expression on their face except Zoro (Though he appeared to be heavily sweating), and Robin "Well you heard the Captain but get ready for Battle just in case" She said

""Not like we even have even a Small Chance against such Monster" Nami said to herself not that she was underestimating her Captain and along with the Crew, but they are About to Meet one of the most Infamous Pirates of the whole world, the one Pirate who has no Problem to sunk entire Navy Fleet and Kingdoms because they Provoke them and last time she heard about them, they have some of the strongest Pirate Crew considering that their Captain was a Former Admiral of the Navy and have fought with the King of the Pirates and Whitebeard pirates before he even become a Pirate himself

Though she had Read about how did he become a Pirate it was said that he killed a World Noble and Massacre an Entire Innocent People that which could have some False and Truths just like Robin and Robin seems to have no Fear there is some Positive Expression to her face indicating she might have met with him before and not to Mention she did saw her blush

as the ship grew Closer, the crew grows Tenser except for Luffy who appeared to be still excited as he bounce person to person speaking little random things though, Until the giant of a Ship looms over directly at them  Almost, They looked at Luffy curious but Wary at their Captain as they tried to Predict whatever Crazy idea their captain has

Luffy looked up to the ship with Awe Expression before he slowly tuned towards Zoro "Zoro stay here and Protect the crew okay?" Said Luffy, as Zoro's Eyes Widened as he was about to Stop luffy but he was too late a second one but still late, as Luffy was Faster to Move as he Lunge to the Giant ship above them via slingshot away "Captain's Orders!" he shouted before he was out of sight

Zoro curse himself at he could 1 second late to Stop their Captain to do whatever idiocy was he about to do that could take them in trouble

"Shitty Marino you could have stop him" Said Sanji as growled towards Zoro as they are worried for their Captain

"I Should'n have to do everything around here Ero-cook" Said Zoro as he shot back "You could stop him too"

Before they could go to their Famous Argument Nami appeared and stop them "Stop we need to prepared to Help Luffy, we have to assumed that Ronan was on his ship we should prepared for----" Nami stop as the whole boat shock

Everyone froz, luffy was on the ground face down behind him, a Dazed looked on his face and a They Notice the Large Bump on his Head, that they have some Flashback when Garp Punch Luffy in the head and have a Nasty Bump on his head

Nami swallowed as she tried to wake their captain "L-Luffy- wha-" before she could finish her sentence as she felt another jolt as a Tall Figure landed right behind their captain

The figure was not just tall but also he appears to be Large person standing in 14'10 ft tall, he is Massively Broad shouldered with Powerful Muscle as there is no Fat on him, he is wearing a Blue Navy Uniform with Blue Shirt inside of it, along with Dark Blue Coat, he has blue Eyes, that which for some Reason they are Reminded to Garp's and Luffy's Eyes, raven black hair he had a Scar on his Left eye and he had a Tan Skin though it's Lighter

He crunch behind Luffy before slowly standing towering over everyone, Nami Notice that she, Robin, Sanji, Zoro and Franky are the only ones left

The Mysterious man Glance at her, Nami cower in Fear at his Powerful Aura Despite that he is not glaring at her with Malice, yet it was still Scary to even looked at his Blue Eyes, before he looked around making eye contact with everyone in the deck, nami back up shew notice Zoro and Sanji are little Paler, while Robin and Franky who appeared to be intimidated at his Mere Glance yet they held their Ground for more like a Respect to his Status as an Emperor of the sea

"Who is this Man?" Though of Zoro as he sweat, he must be one of the top commanders to get rid of us, if that is so... then i must protect save luffy" Zoro glance at Luffy who is lying in front of the man who is still out cold and for some reason his Nose has bubbles indicating he is asleep that which made his Crew to widened their Eyes again

"HIS SLEEP AGAIN?!" His Crew shouted in unison

The Man Glance at luffy before he raise his Fist, that which for some Reason they din't stop of whatever he is gonna do

"OI WAKE YOU MEAT FOR BRAINS! FIST OF LOVE!" He Said as he Went and Punch Luffy that which instantly woke him up

Luffy scream in Pain as he Rub his Head now have 2 bumps into to it

"Aw Aw that's Hurt UNCLE!!!!" Luffy shouted

"EHHHHH!! UNCLE?!!!!" His crew shouted minus Robin who is barely a whisper with a shock expression on their face as their jaw drop from the floor

Luffy looked to his Crew and Nervously Lough "Shishishishi, Yep his my Uncle Alright" Said Luffy

The Straw Hats Looked to His Uncle with Confirmation not wanting to deal with another of his Family

The Man Bowed "Yes, i'am his Uncle, Monkey D. Ronan i'am the 2nd Son of Garp the fist and a Former Admiral of the Marine" Said Ronan with a Smirk "And i'am the Captain of that Ship" he Put  his Thump towards the giant of a Ship

"The Captain?!... Ronan?!" Said Nami in shock "We know that Luffy's Grandfather is Garp, his Father is Dragon NOW HE HAS A FREAKING UNCLE A FCKING YONKO? WHAT KIND OF FAMILY ARE THEY?!" She was internally Screaming to herself at such Ridiculous family

"OH PLEASE DON'T BE LUFFY OR GARP PLEASE DON'T BE LIKE THEM" Though of the Crew as they sweat drop of knowing that he is Luffy's Uncle

"So i've heard That you've met with Dad isn't that Right Luffy?" Said Ronan as he cross his Arms

Luffy Nod with a Grin "Of course Uncle we have Reunite then the Shitty Geezer tried to kill us!" Said Luffy as he Change his Demenour

Ronan Frown and Face palmed "Of course Pops would do that" Though of Ronan

"Well he has his Duty your lucky to be alive because if wants to Arrest you, you would be in Impel down my now" Said Ronan "Only the Love of my Father that you are still in One Piece my Nephew for my Father values Family that which even i Inherit it, because of you are in Inprison there might have a War by now and i have some Few strings that i can pull to get support from Other Yonkos well most likely Whitebeard and Shanks"

Luffy Rub his head for that "Your also Friend with shanks?" Said Luffy with star on his Eyes

Ronan nod "Of course i'am for we are the Same Caliber when it comes to Swordmanship along with Mihawk, though raw Power alone i'am the stronger between the two of them, sword skill wise, we are equal" Said Ronan

Zoro take an Interest on that when he hear that Ronan was the same caliber as Mihawk and come to think of it, Ronan's sword Strap on his Hip and appeared to be looked like a long sword a Large size fit for the hand of Ronan

Ronan finally Glance at the Crew "And this is your Crew then Luffy?" said Ronan

Luffy Nod Rapidly "Yep Uncle" Said Luffy

"And that's not all of them isn't it?" Said Ronan as luffy Nod, with it Ronan looked to the Kitchen "You can come out now, i already sense you even before i land on your ship if not...." with a simple Command a Tremble usopp and Chopper were pulled out in the kitchen by a Neutral Brook though You can't know that he is Nervous when he doesn't even have a face at all (Yohohohoh)

They walked to beside sanji, Usopp tried to look fearless just to Impress Luffy's Uncle but his Knees are Shaking gave him away

Ronan smiled of Luffy's Crew "What a Crew you even have a Reindeer and a Skeleton a Unique but Welcome one" Said Ronan

"Shishishishi Right? i hope you would like them Uncle" Said Luffy

Ronan snorted at that "Of course anyone who is your Crew will be now a Friends of mine" Said Ronan as he Glance at the Crew until he know Looking at the Specific 2 Individual "Ah Franky it appears you have become crew to my Nephew"

Franky Grin "Of course Super!" He said with a Pose "How my Friend who have Join your Crew?" He ask

"Well he is doing well, he is our Chief Engineer he Maintain and Repair the ship along with Special Trained crew of how to Repair the ship Effectively and not to Mention he also Upgrade the ship up to date of every Tech in the World" Said Ronan

"That's superrrr" Said Franky

Ronan glance at Robin who looked at her affectionately "Hello Robin-chan it's nice to see again" Said Ronan

Sanji made a Face and a Heart broken "How in Kami's Name that he knows Robin?!" His though with a Depressed aura around him

"Yeah you too Ronan-kun" Said Robin with a Smile

"Eh Robin how did you know him?" Said Nami

"Well let's just say we have met by accident, though it was before i was acquainted with Crocodile, in a Bar, after that we Date for several weeks and he takes my Virginity along with it i'm one of his many lovers" Said Robin as if it was the most normal thing to say

another Depression hit sanji "That's official i will never be able to reach his level" Though of Sanji as he curled himself while crying, while Zoro raise his Eyebrow

"Okay i know they have an Large Appetite, but his uncle has another Kind of Appetite? What kind of Monster that even birth him? And not to Mention he is even Larger and Broader than garp and he likely as intimidating as his Father" Though Nami with a Sweat Drop she knows when Man are lust, but she could not see any lust despite that she could tell that his a Womanizer but more Controlled than sanji's "His more Controlled of his Lust that which would be formidable opponent should even fight a Female Fighters"

"I've heard of your Audacity to even have Sex with one of Big Mom's Daughters?" Said Robin with a smile

Ronan rub his head "For your Information my Dear i din't know Charlotte Custard and smoothie are even her Daughters when i first met them okay" Said Ronan "And when did you hear that News anyway? That's a Big Deal you know"

"Simple you'll never know when some Pirates that are Allied with the Big Mom Pirates could slip their Tongue and it was Surprising that she would even allowed it" Said Robin

"Oh please she only allowed it because she would take the chance to have an ally Yonko such as i" Said Ronan as he pout

"So this calls" Said Luffy with a Grin as he stop for Dramatic effects "This calls for celebr-----" He was cut off as he was Punch by both Zoro and Kick by Sanji in the head

"YOU NEVER TOLD US WE ARE MEETING WITH YOUR UNCLE AND YOU MADE US WORRIED YOU BASTARD!" Said Both Zoro and Sanji Angrilly as the Crew Sweat Drop

another Figure appeared this one standing in 10 feet tall

"It appears he hasn't change doesn't he Captain" Said the Person

"Of course Nath, my Nephew Hasn't change even Ace when i Met him with Whitebeard" Said Ronan with a smile

___________________________________________________________________________________________________________

And Done

My OC

Age: 45 years old (8 years younger than Dragon)

Height 14'10 ft tall

Eyes: Blue

Skin: Lighter shade of Tan

Hair: Raven Black

Occupation: Yonko and Former Marine Admiral

Weapon: Long sword a Supreme Grade Sword  and a Black Blade as well, it's called Retribution

Devil Fruit: Unknown (At the Moment)

Pirate Name: Atlas Pirates

The Atlas Pirates are Consist with Marines who have Joined him after he become a Pirates and other are not, making them a Very Power Organization itself as they are a Former Navy Marines, with Ronan as the Fleet Admiral, along with Admiral and Vice Admirals due to their Large Organization and many Members even to the enlisted are known to train Haki

and they have Dozens Subordinate Captains that answers to Ronan Directly

Crew Strength: Tens to Hundreds of Thousands

Fleet strength: Hundreds to Thousands of Ships

Flagship: Sovereign Crew:50,000 Elite Pirates

Another One is called The Dreadnought, this was used whenever Ronan wanted to travel in Light, thought it was Almost as Large as Big Mom's Flagship, Crew: 15,000 Elite Pirates

Possible Love Interest:

Robin (Only when they Encounter)

Ain

Hana (Marine and  Secret)

Yamato (If Possible as i might going to meet with her with my OC maybe after Ace have gone to Wano)

Custard

Makino

That's all Folks, This is Just One shot, and i don't know much how to Integrate a OC Yonko to the story, maybe just another One Shot in this story whenever is Possible or until i could make a story about this one, but it would be difficult

Feel Free to suggest to me of how to Properly Write One Piece story, just this my OC is a Yonko

See you Next time folks