I'm glad to know that this will be the first crossover of two of the greatest shows ever to be on TV, Adventure Time and One Piece. I decided that each chapter should start out with a bang of epic awesomeness and what better way to do that then to start each one out with the very first theme song of One Piece that won the Animation Kobe Theme Song Award for 2000 'We Are' while explaining what goes on the best I can. So I dare all of you that read to imagine what the theme song looks like while you read it.
Wealth, fame, power…Gold Roger, the king of the pirates obtained this and everything else the world had to offer. And his dying words drove countless souls to the seas.
"You want my treasure? You can have it! I left everything I gathered together in one place! Now you just have to find it!"
These words lured men to the Grand Line in pursuit of dreams greater than they've ever dared to imagine! This is the time known as 'The Great Pirate Era'!
Finn, Jake, Princess Bubblegum, BMO, and Monkey D. Luffy were running across a cliff, jumped off it, and flew to the ocean.
Come aboard, and bring along all your hopes and dreams.
Finn, Jake, BMO, and Bubblegum grabbed onto Luffy while Luffy stretched his arm to his pirate ship to get on board.
Together we will find everything that we're looking for.
Then the logo Straw Hat Pirates and Adventurers appears.
ONE PIECE!
Scene goes to all the Straw Hat Pirates, Finn, Jake, and BMO riding Lady Rainicorn, Princess Bubblegum riding the Morrow, and Flame Princess, Ice King, and Marceline flying through the air all passing by Dragons, Hawks, and other flying creatures.
Compass left behind, it'll only slow us down, your heart will be guide, raise the sails, and take the helm.
Scene then closes in on Monkey D, Luffy, Finn, and Jake hanging upside-down on Lady Rainicorn
That legendary place that the end of the map reveals is only legendary until someone proves it real.
All the main characters then start fighting bad guys that get in their way.
Through it all, through the trouble times, through the heartache, and through the pain know that I will always stand by you
Monkey D. Luffy then punches Flame King in the face extremely hard.
Just like I know you'll stand by me!
Then shows all the main characters traveling through the Land of Ooo
So come aboard, and bring along all your hopes and dreams, together we will find everything that we're looking for.
Shows Finn and Monkey D. Luffy taking off their hats and spin them in the air.
There's always room for you if you want to be my friend
Shows all the main characters on the pirate ship, first Monkey D. Luffy, Finn, and Jake and then the rest. The Adventure Time characters are all in awe while the One Piece characters act the same way as they always do.
We are, we are, on the cruise!
Then shows the logo Straw Hat Pirates and Adventurers one last time
WE ARE!
Out in the ocean Glob knows where the pirate ship of the Straw Hat Pirates is sailing. Nico Robin, Usopp, Sanji, Nami, Tony Tony Chopper, Roronoa Zoro, and most importantly Monkey D. Luffy were on board. (You're probably wondering why Franky and Brook are not on here that's because I still didn't see them in the series yet. Yes I didn't get that far in the series so those two aren't going to be in this) They were on sail toward the next island while in the rain.
"So Luffy where are we going now?" Zoro asked.
Luffy placed his arms on the back of his head. "Beats me"
Zoro then got a little angry from that fact. "What you don't even know where we're going."
"I just go wherever the wind takes us." Luffy said as they started to hear thunder.
Chopper heard the thunder and then got scared and grabbed onto Zoro's face.
"GET OFF OF MY FACE!" Zoro demanded while throwing Chopper off his face.
"Looks like there's going be a thunder storm. We need to get inside now." Nami said.
They all then ran inside the ship one at a time.
"Hurry up I don't want to get more soaked then I am now." Nami said.
"Are you sure about that?" Sanji asked.
"YES I'M SURE ABOUT THAT NOW GET GOING!" Nami shouted making all of them hurry up.
They all made inside and hoped that the storm will die down soon but one Usopp looked out the portal he saw that they might have bigger problems now.
"Uh guys…THERE'S A GIANT WAVE COMING!" Usopp said.
Nami looked and saw that Usopp was right. A freaking huge wave was coming out of the storm and they don't know what will happen to the ship once it hits.
"BRACE YOURSELVES EVERYONE!" Nami shouted.
After that the wave then carried the ship and all of them onboard.
The Land of Ooo! Monkey D. Luffy vs Finn the Human!
A few hours later
The Straw Hat Pirates wake up on an unknown beach. The only ones that weren't concerned about what happened were Chopper, Usopp, and of course Luffy. Instead they stared in awe over the fact they are on another island.
"YES…WE MADE IT TO THE NEXT ISLAND!" Luffy shouted in excitement.
After that Luffy started rolling across the land of the place they are in while Chopper and Usopp joined. Robin and Sanji didn't feel any concern, but Nami and Zoro looked at them in disgust.
"WILL YOU STOP GOOFING OFF AND LOOK AT WHAT HAPPENED TO THE SHIP!" Nami said in anger.
Luffy looked and saw that the entire ship has been destroyed. "Whoa, how did that happen?"
"Because we crashed here when the storm hit. Don't you remember that?" Zoro asked.
Luffy thought about it a little. "Sorry I was having a lot of fun that I didn't notice."
After hearing that Nami and Zoro looked at him in disgust while Usopp, Chopper, Sanji, and Robin didn't. As much as Nami wanted to punch Luffy right now she realized that they have bigger problems.
"Looks like we're going to be here for a while." Nami said.
"That's fine by me. I'll go see they have any meat on this island." Luffy said taking a few steps.
Nami was turned around looking at the damages of this ship while speaking to Luffy. "Luffy can't you think of something other than meat, like how are we going to get the stuff we need to fix the ship."
"Nami." Zoro said. Nami then looked at Zoro. "Luffy's gone."
Nami looked and didn't see Luffy anywhere. Usopp noticed this and ran to the direction that Luffy went at a fast pace. "HEY LUFFY WAIT FOR ME."
"Looks like we have to get them before they cause trouble. Robin will it be alright if you watch the ship and the others."
"Sure thing navigator." Robin said.
"Come on Zoro." Nami said while walking in the same direction Luffy and Usopp went."
"Finally I get to stop being bored." Zoro said grabbing his three swords and following Nami.
Later on somewhere else
Luffy was walking but couldn't help but notice that there was nothing but grass everywhere. "What kind of island is this?"
Usopp finally managed to catch up to Luffy, but was breathless since he ran so fast. "Finally I caught up." Usopp then took a few deep breathes. "So what do you see."
"Nothing, but grass." Luffy said.
"What, that's all there is here." Usopp said all surprised.
"I know" Luffy then grabbed a rock. "IT SUCKS." He then threw the rock.
Somwhere not far from Luffy and Usopp was Finn the Human and Flame Princess. They decided to go on a date by walking aroung Ooo.
"You sure you don't want to go somewhere else?" Flame Princess asked.
"Sometimes it's nice to just relax and have fun in the place you are in now right?" Finn asked.
"Yeah I guess you're right." After that the rock that Luffy threw hit Flame Princess. "Ow. Who threw that?"
They then heard a conversation going on they both decided to check it out. They looked and they saw Luffy and Usopp.
"Hold on this is the only place we looked there might more places here if we keep looking." Usopp said.
"Yeah I guess you're right, so where should we look first?" Luffy asked.
Finn and Flame Princess didn't know what they were talking about but by then they didn't notice since they had something else on their minds.
"Those guys, they look just like me." Finn said.
"I thought you were the only human on Ooo." Flame Princess said.
"Well let's take a look." Finn said running toward while Flame Princess followed.
Luffy and Usopp heard a noice and when they turned their heads they saw Finn and Flame Princess coming there way.
"Finally we see someone, now we might get some answers to where we are." Usopp said to himself.
Finn and Flame Princess then stood right next to Luffy and Usopp.
"Hey am I the only one that sees that, that chick is on fire?" Usopp asked.
"Better, I'm made of fire." Flame Princess said.
Luffy thought about what she said and looked at her closely and she was right, she was made of fire, but instead of looking in awe he simply laughed.
"This place is weird." Luffy said as he continued laughing.
Finn looked confused when Luffy said 'This place', it made him think of something that he never thought of before. "Wait are you saying that you're not from here."
"Well now that you asked..." Luffy was then cut from Usopp by covering Luffy's mouth.
"Hold on Luffy we don't want to cuase anything. For all we know they might attack us if we tell him that we're not from this island." Usopp wispered in Luffy's ear.
Usopp then uncovered Luffy's mouth. "Don't worry they can't take me on."
"OK! Then we won't fight you." Finn said.
"Why not, are you afraid that you won't be able to defeat me." Luffy said.
"No, it's just that I know you're just being sarcastic and you won't win. Besides I'm stronger compared to you, because I'm the hero around these parts." Finn said.
Luffy didn't get why he said that until he thought of something. "I see, you just can't admit that I'm stronger than you. It's OK you can admit it and if you do then I might not fight you after all." Luffy said.
Finn turned around. "Yeah I'm not getting sucked into something that I could easily win."
"Yeah, I mean I could defeat you with one little flare." She then shot a little spark of fire which then landed on Luffy's straw hat, burning only I small bit.
Usopp then stood there open mouthed as to what she just did. "You really shouldn't have done that."
"Done what?" Flame Princess asked.
Luffy just stood quiet for a little bit but then he spoke. "YOU LITTLE IDIOT WHY DID YOU DO THAT TO MY HAT." Luffy then ran towards Flame Princess and punched so hard that she flew right threw a tree.
Finn saw what he did and started rethinking on fighting Luffy. "I'LL KILL YOU."
"OH SO NOW YOU WANT TO FIGHT, ALRIGHT THEN BRING IT ON." Luffy screamed.
Finn then started running at Luffy to try and punch only for Luffy to dodge the attack. Finn then threw multiple attacks and Luffy kept dodgeing every one of them, but then Luffy started to hit Finn and he hit him in the face. Finn then felt a mark on his head and then charged at Luffy, screaming. He then punched Luffy in the face causing him pain.
Luffy touched the mark he got from Finn and then screamed. He then stopped screaming and said "WHAT WAS THAT FOR?"
"For hurting Flame Princess and me." Finn said.
"It was only because she practically ruined my most valuable treasure." Luffy reminded him.
Finn thought about what she ruined and he remembered that it was Luffy's straw hat. "That hat is his most valuable treasure?" Finn thought to himself.
"This hat means a lot to me and I won't let anyone ruin it." Luffy said.
Just then Flame Princess got up and screamed "ENOUGH?! THOSE THAT HARM ME WILL FEEL THE POWER OF THE PRINCESS OF FLAMES." She then began to change form and go after Luffy.
Luffy then ran and he kept running until he saw a tree. He then grabbed while running, making his arm stretch. Finn and Flame Princess couldn't believe what they were seeing.
"Gotha!" Luffy said smiling and turning to Flame Princess who was shocked to see his arm stretch.
"How is that possible? He has the same powers as Jake." Finn thought to himself.
Before he could think of anything else he heard Luffy talking. "GUUUUUM, GUUUUUM..." Luffy then flung himself to Flame Princess at top speed. "ROCKET!" Do to that he hit Flame Princess with brute force from that move causing her to fly to the ground where Finn is.
Luffy then walked up to them. They were both wondering what he would do to them. They thought that he would either kill them or critically injure them so they can feel a lot of pain. They didn't expect him to laugh.
"Looks like I win." Luffy said continuing to laugh.
From behind the scene Usopp came out of hiding and said "That's why you don't do that to his staw hat."
"Wait hold on aren't you going to kill us?" Finn asked.
Luffy then stopped laughing and looked at Finn. "Why would I do that, I'm not that kind of guy."
"Because you faught us both." Finn said.
"That was because you messed me hat." Luffy then grabbed his hat. "You see this hat was given to me by my friend Shanks, and I promised that I would give it back to him."
Flame Princess then got up. "I'm so sorry about that, I promise it won't happen again."
Luffy then smiled. "OK I accept your apology."
Finn then remembered that he saw Luffy stretch his arm. "Hey wait a second how did you do that thing with your arm."
"That's eazy I ate the Gum Gum Devil Fruit." Luffy said.
Finn and Flame Princess looked at each other confused. "What's that?" Finn asked.
Usopp came up and said "You mean you never heard of the Devil Fruit. Well you see there are many types of Devil Fruit and all of them gives you special magical powers." Finn then was amazed by what he heard. "But if you do eat one then you will lose the ability to swim for the rest of your life." Finn then got shocked for what he heard then.
"The one I ate makes me rubber." Luffy said.
"So you can't swim ever again?" Flame Princess asked.
"Nope, but it won't stop me from becoming the best pirate." Luffy said.
After they heard him say "pirate" Finn and Flame Princess stood there open mouthed. Out of all the years the spent living in Ooo this is the very first time they ever saw a pirate. They were afraid that they might steal all the treasure in Ooo, but then they thought that if they wanted to do that then they would have already done it.
"You're a pirate?" Finn asked still shocked.
"That's right. I said that I would be the best pirate ever and if I have to die to do that, then I die." Luffy said.
"Wow, that is awesome." Finn then raised his hand for a handshake. "I'm Finn the Human and I'm the hero of the Land of Ooo."
"The Land of Ooo, that's a great name for this place." Luffy then grabbed Finn's hand and they both shook hands. "My name is Monkey D. Luffy and I'm going to become King of the Pirates.