A/N: Hi all and welcome to this story of mine! Actually, I never thought in my wildest imaginations that I will write something like this but I've read some cute and sweet stories about these two so I just couldn't resist! Unfortunately, those favorite stories of mine aren't finish yet, so I decided to make my own. I do hope that I at least do a decent job on it though. Warnings: Characters are OOC and gender bend Luffy. Okay, this is what happens when I get bored so if you're still willing to have a go, good luck and happy reading!

Disclaimer: I don't own One Piece.

Chapter 1: Where it all began.

*Heart of Rubber*

Marco the phoenix is a logical man. He is level headed and has a systematic disposition in solving every problem that comes his way. But just because of that, it doesn't mean that he never appreciates the craziness, He is living in the Moby Dick after all.

When you're a pirate for more than Twenty years, it's impossible to be immune of the insanity that goes on the ship. He is Whitebeard's first son and there for his companion the longest. He had been subjected threw the funny jokes, humiliating pranks and stupid death-defying stunts of his brothers and sisters over the years. Marco really thought that he has seen it all.

But looking at the chaos here in Marineford, he is beginning to realize otherwise. There are fights everywhere he looked, wounded comrades spluttered on the blood field ground and bodies of marines and pirates alike are scattered everywhere. Screams of anger and cries of agony are all that he can hear.

It is almost unbearable yes, but the Whitebeard pirate doesn't regret going here, not one bit! They need to save their brother; they need to get to him! In this war, he's all that matters.

Marco and his brothers know the fact that some of them are never going back in to the New World, but they don't care. They have all accepted that knowledge and not in the least bit sorry about it. Pirates' lives are short, not everyone is like Oyaji, and what better way to go, than to go down fighting!

This war is the Navy's plan to get rid of them, the strongest pirates in the New World and they know it. But it doesn't mean that they're going to make it easy for the bastards! The pirates have their allies, strategies and most of all, there will! They can and will save Ace no matter what!

These are Marco's thoughts while his observing the battlefield. "Nothing can get crazier than this yoi." he said to himself. Oh, he didn't know how utterly wrong he is! Because in the midst of the chaos, blood and confusion, something fell down from the sky.

Marco blinked once, then twice but it is still there. Something is rapidly going down in the battlefield! All of them stopped what they are doing, marines and pirates can't help but to stand there and studiously watch as this unknown object landed in the safest place for them, the patch of ice that Urs Junior made. Many of them gaped, the marines cried in outrage! For came out of the ship are what looks like to be the feared prisoners of Impel down! And with them in the front, is Ace's little brother. The renowned rooky, Monkey D. Luffy!

Of course, Marco recognize him instantly, he heard enough of him to make his ears bleed! And unfortunately for him, not even his healing abilities could do much about it. No one can get pass from a drunk over protective older brother after all.

The kid is impressive; he'll give him that. Especially when he found out that he came from the weakest sea in all of the blues. Marco didn't think that Ace's stories were true, for him, it's just not possible that someone can get in too much trouble like that. But clearly, Straw Hat Luffy wishes to prove him wrong.

He first took interest in the brat when he defended Oyaji from that scum Crocodile. The idiot tried to impale his captain with that blasted hook of his but with a flash, Straw Hat manages to intercept Crocodile by kicking him away from his father. Then he sees Oyaji having a conversation with the young pirate.

Marco hears him being told off by his captain, that he's too weak to join this war. Straw Hat may be an impressive pirate, but a rooky nonetheless. All of them know that Ace will never forgive himself if something happened to him, given the look he has when talking about that bungling kid brother of his. And for Ace's sake, they want him safe.

"Did you come to save your brother?" Whitebeard asked the young captain.

"That's right!" He answered staring up at the giant of a man unflinching.

"Do you not realize what you are up against?" The old pirate told him harshly. Then he displayed a little of his power trying to gage the kid. He took his bisento and slams it down on the deck, all the while looking at the young pirate.

"Someone like you doesn't stand a chance!" He told the boy.

"Shut up! That's not for you to decide! You don't know… you don't even know me! I know about you; you want to be the pirate king don't you?! You have to go through me, got it?!" He answered back while glaring defiantly.

That proclamation got Marco's full attention. Not everyone is brave or stupid enough to talk back to the strongest man in the world. But not this kid, he didn't just talk back, he challenge the man! He honestly doesn't know if that's bravery or just being plain idiocy. From Ace's stories, maybe the latter, the commander concluded.

Marco shook himself out of his musings to look at the young rooky more intently. And now to his amusement, the kid is having a conversation with his captain like their old friends and as if the moment before didn't happened. After exclaiming that he'll do what he wants and some stuff that they already guessed, he carelessly jumped in to the fray to save his big brother.

"Marco don't let that kid die." He heard Oyaji say.

"Got it yoi." He answered. Then Marco smirked. 'I like this kid.' He thought.

From then, he watched the kid closely. He saw him kick and punch his way through countless marines just to get to his brother. The kid picked at his curiosity more and more because of his enemies. Marco spotted Kizaru attempted to take care of him from the start, but the Revolutionary's Ivankov saved him from the worst of it.

He hasn't been out of danger long when another foe came his way. The tyrant Kuma tried to intercept him but the revolutionary told him to go on ahead. He ran straight again, while marines are on his way in every turn. He knocks them out carelessly, uncaring about anyone but Ace. Not long after that, another warlord stood on his way, Gekko Moriah.

Still he fought them, countless zombies and marines swarming at him. He is getting punched, kicked and slashed but he went on. The runt couldn't get a break at all! Strong opponent after strong opponent came after him but he just continued on.

Straw Hat looks bruised and battered, but after breaking in and out of the most feared prison in the world, who wouldn't? Marco didn't think that a rooky would really jump in to a war between the superpowers of this time but Straw Hat proved him wrong. He went in to the place that all sane pirates would stay away from, and not only that, he escaped!

As if that it wasn't impossible enough, he went straight to Marineford after. Ace is right, crazy kid!

Then they all hear Ace yell. "Stay away Luffy! You and I are both pirates, I have my own adventures! I have my own life! Go home Luffy!"

Ace looked like every word is physically hurting him but still he kept on. "A weakling little girl like you coming to save me, do you think I will let that happen? It's humiliating! Why are you here Luffy!?"

Marco sees that tears are gathering in Ace's eyes. He looked like he wanted to tear his chains off just to get his... "Wait... What did he say?!"

Everyone is gaping in shock of what they heard. They all stared at Straw Hat but he/she just kept running forward!

"Because!" Straw Hat screamed. "I'm your baby sister!" She yelled so the whole world could here.

Pirates and marines are stunned with disbelief; no one could get over the fact that Straw Hat is a girl! Most of them have their jaws on the ground with bulging eyes to boot.

Marco is not much better; he's looking at Straw Hat as though he is seeing her for the first time. His composed mask slipped for a moment, his eyes are as wide as dinner plates! Good thing he manages to close his mouth immediately. He's hearing revelation after revelation here!

"Whaaaat?!" Is the general outcry.

"Straw Hat is a g-girl?!" Marco sees a clown with a big red nose exclaimed in disbelief!

"Is she the daughter of Gold Roger too?" Are most of the questions.

"This is confusing yoi." Marco muttered to himself. And he's sure that he's not the only one who thinks that way. This situation will be amusing, if only they're not in the middle of a freaking war! The phoenix's attention returned to the young pirate when he hears her say.

"I'm a pirate too; I don't care about those stupid rules!" She shouted back.

"You're a stubborn jackass!" Ace screamed in frustration.

Then, another revelation is made. They hear Sengoku announces. "What are you doing? Allowing a rooky to dictate the battle like that! That young woman will be dangerous in the future! She was raised with her sworn brother fire fist Ace! But she is the biological child of The Revolutionary Dragon!" The fleet admiral finished.

"The Revolutionary Dragon?!"

"Dragon has a child?!" The people asked getting more confused by the second.

They got all snapped out of their shock state when she took care of one of those giants by enlarging one of her fists and with just a single blow, the big guy got knocked out. Then she yelled. "I don't care about that mean stuff you said Ace! I'm gonna save you even if it kills me!" She declared boldly.

Marco has to admit though; the brat's yelling inspires them. Her words lights up the hope in their hearts and the next thing he noticed, warmth slowly made its way in his chest. She's fighting so hard for Ace... Her big brother so the least thing they can do is to fight alongside her. She gives them hope so they will return the favor. The Whitebeard Pirates will help her no matter what! And they will try to keep her safe in the process. The first division commander swore this to himself, little did he know that running around punching and kicking those who are in her way is just one of the many crazy, reckless, and stupid stunts that one Straw Hat Luffy will perform!

While she continues to charge, Mihawk targeted her next. She's doing a good job of evading his attacks so far, but the first division commander knows that it won't last. Good thing Vista came and helps her.

He sees her got kicked by Kizaru and the force of that attack caused her to be back from where she started, had it not been for Jinbei catching her. The last thing he'd seen is Izo helping the kid. Marco had forgotten everything else when he realized what has happened to his captain.

He quickly flew in to the ship and bashed Squardo's head! "What have you done Squardo yoi?!" He demanded furiously.

There's no word to describe what Marco's feeling right now, it never crossed his mind that one of their own will betray them! He lost his normally cool head when his brain process what has happened to Oyaji. And as he listened to Squardo's reasons, the cold fire of the phoenix cried in righteous outrage!

Marco held him by his coat and the commander shook him furiously! "Bastard, he was the one who took you in Squardo yoi!" He said, trying to make his brother see reason.

His brother got fooled by the Navy scum... Marco will never forgive them for this! The strong urge to burn down this hellhole is slowly winning over his calm mind, only his father's words cut through his murderous thoughts.

Oyaji forgives Squardo then he made an escape root for their allies. "Your pirates so decide for yourselves! Those who are willing to risk their lives, follow me!" His father shouted then he jumped in to the battlefield!

After all these years, only his father's words could reach Marco and give him strength to keep going. He schooled himself and reined in his temper. The phoenix is willing to control its fury for now.

Everything turned from bad to worst fast. The Plaza suddenly got enclosed with steel walls and their allies are backed in a corner. The marines are planning to drown them all! As if it's not horrible enough, He sees Akainu mercilessly tear the Moby Dick apart.

It's like their hearts are being ripped out of their chest violently! Even though some of the pirates are trying to put out the flames, Marco knows that it's not going to be enough and that they're going to lose the Moby Dick here. They know that there will have to be sacrifices made, but knowing can't make it easier.

His heart constricts painfully when he hears Oyaji say good bye to their beloved ship. He quickly wipes the stray tears that fell from the corner of his eyes; there will be time to mourn later. He needs to focus in the battle right now.

Then they notice that water shot up and got passed the metal walls, Ace's little sister on it. She landed in front of the three admirals and Marco just has to do something to help her! He didn't waste any more time as he changes his arms to wings and quickly flies towards her, he came just in time to kick Aokiji away from the girl.

He spared a quick glance at her and even he can tell that she is at her limit. The girl will die if she keeps this up! Straw Hat has many injuries, long gashes, the poor girl is covered in blood and not to mention the fatigue that she must be feeling right now. He can see that she is out of breath but still she looked up preparing to fight again.

"Thanks pal!" She said to Marco and she gives him a dazzling smile that conveyed her gratitude.

Despite the confusion and chaos that darken the hellhole that they are currently in, to Marco her smile lit up the whole place! He couldn't help but to smile back at her and say. "Don't mention it yoi."

*end of chapter*

A/N: Please tell me what you think and leave a review!