The Demon's Hymn Pirates!

Written by: Self-Proclaimed KingofDDR

Summary: When plagued with boredom, what do Mao and friends decide to do? Why, become pirates, of course! And what better way to make a name as pirates then right at the climax of the Whitebeard War? Disgaea/One Piece Crossover.

It had been a few months since Mao, Overlord and Dean of Evil Academy, had led his party to victory against the Tyrant Overlord Baal. With said victory, Mao had proven that he indeed deserved to be among the top tier of the various Overlords within the different Alternate Universes.

There was just one problem with all of that.

There was nothing else to do afterward.

Sure, Mao could just spend all of his time in the Item World, creating invincible weapons or potions capable of restoring life to a man no matter how grievous his injury. In fact, he had already done both. But honestly…what was the point of doing so if you already took down not just one, but three copies of the Lord of Terror himself?

With a sigh, the Mad Scientist hopped out of bed, condemning himself to yet another boring day filled with mediocrity.

Unknown to Mao, however, he was not the only one who was feeling rather bored. Laharl, Overlord of his own Universe, was bored out of his skull. He had thought that with a school filled with up and coming demons, there'd be a whole lot more people who he could beat in epic battles to prove his superiority against. But with the exception of Mao and a few others, they all proved to be very disappointing.

So, having nothing better to do, Laharl was terrorizing the various monsters and Demons within the Item World of the Devil Ring, while his loyal vassals Flonne and Etna just looked on.

"Laharl sure seems to be in a foul mood, wouldn't you say, Etna?" Flonne said, a bit concerned at how much force the young Overlord was using against the much weaker enemies.

"Well, you know how the prince is," Etna shrugged, sitting cross-legged on one of her Prinnes while eating a candy bar. "If there's nothing interesting going on, he resorts to violence as his first answer, always."

"Yeah…but this is the 20th Item that Laharl has gone through. And half a day hasn't even gone by yet," Flonne pointed out. "And with the way he's going, he might accidentally take that Super Robo Suit that Mr. Mao has been planning to level up. Then who knows how long it'll take for them to fight afterward?"

"I don't think that Laharl would really care about something like that, Flonne," Etna said dryly. "But you do have a point. This school, what with it constantly evolving and adding new buildings, has been the perfect place to store my sweets where Mr. Pudding Thief can't get his grubby paws on them. If those two brats were to fight, my precious sweets could get caught in the crossfire."

"Then we should find a way to stop Laharl's boredom, don't you think?" Flonne said, rubbing her chin in thought. "Maybe Miss Jennifer will have invented something to help with that…"

Etna shrugged again. "Couldn't hurt. We can see her after the Prince takes care of the Item God on the next floor…crap. Heads up, Flonne!"

Etna ran off to another end of the floor they were on while Flonne looked up to see what made the powerful Beauty Queen run away.

…And instantly regretted it.

Cruising towards the various enemies was a giant meteor. But not just any meteor. Laharl himself was riding atop of it, chuckling to himself.

"Wait for me, Etna!" Flonne yelled, rushing after the Demon Lord. "Overkill much, Laharl?"

"Hm hm hm…burn, you pitiful worms! BURN! HAAAAAAAHAHAHAHAHA!" Laharl said with his trademark Evil Laugh as the Meteor hit its mark.

Meanwhile, Jennifer was busy doing her own thing. But instead of it having something to do with science or machinery, she was training her body instead.

When she had come to Evil Academy to apply for a job as a teacher, she didn't expect to run into the likes of Adell and Mr. Champloo, let alone for the three of them to become sparring partners. Jennifer was ecstatic to find not one, but two other people who were as adapt and eager in the Martial Arts as she was. Not to mention that Adell was able to enlist the help of Old Man Geo (Geo Panel Puzzle Extraordinaire) to make the spars more interesting.

Right now, she was holding off the relentless attacks coming from the Demon Chef Champloo, thankful that the panel she was standing on helped increase her evading skills.

"I can do this all day, Jennifer! As any Chef worth his smock can tell you, patience and timing are two key elements of any dish worth serving, boom!" Champloo declared, throwing rapid fisticuffs at the buxom blond.

"I'm well aware of that, Champloo. I'm just waiting for said timing so that I can counterattack!" Jennifer retorted. She then saw Adell leap into the air (spinning rapidly and gaining flames around his body on the way), and gave a little smirk. "And it looks like that time is now!"

"What?" Champloo said. But instead of answering, Jennifer leapt away from Champloo as Adell began his own attack.

"Soaring Fire!" Adell roared the name of his attack, diving feet first towards Champloo at an alarming speed.

Luckily, Champloo didn't bother to look up towards Adell when he heard his voice, and simply leapt away as fast as he could. Because of his quickness, Adell only managed to hit the ground and caused a massive explosion of flames from both the impact and the fire around him.

Before Adell could manage to make his next move however, Champloo landed on his hands from his leap, and used them to springboard back towards the Battlemaniac.

"Shredder Kick!" Champloo roared, slamming into Adell with both of his feet before spinning his body at high enough speed to be compared to a drill. His feet dug into the Ex-Demon Hunter's gut, causing more damage to be inflicted before he finished with a kick that launched him away a good distance.

Fortunately, Adell had had the good luck of having landed on a Geo Panel that increased his body's resistance to physical attacks, so he was able to withstand most of the attack and hold his ground. But the little damage that had gone through had taken its toll on him, causing him to rub his sore gut a bit.

"Hyahahahyahaha! Nice try, Adell! I commend you for striking when the iron was hot, but sadly for you, your little surprise attack was a bit too cold for me to enjoy! Boom!" Champloo taunted as he landed back on his feet a good distance away from the Ex-Demon Hunter.

Adell gave a little grimace as he slid back into a fighting position. "Gh…that attack wasn't half-bad, Champloo. But let's see if you can handle three servings of the main course!" Adell growled back. He did a back-flip into the air, said air distorting around him a little bit as his energy coursed through him. And after a few seconds he split apart, from one person to three!

"Splitting Shot!" All three of the Adells said.

"Hm. Not bad, Adell. But you should know that feeding a consumer the same dish three times will make them…"

"Enough with the cooking metaphors! Let's just fight!" The Real Adell shouted, before all three of them rushed towards the Demon Chef.

As the two were engaging in battle, Jennifer was surveying the Geo Panels. She wanted to find some that would serve her in finishing this battle once and for all. After a few moments of using her modified Crosshair glasses (which she raised to Level 100 within the Item World), she was able to find two Deathblow Panels right next to each other within her scope of sight. If she could just trick them into standing on those panels, then she'd be able to finish them off with any attack so long as it hit and inflicted damage.

"Now, the only problem is to figure out just how to do that. How exactly do I lure them both onto the same panels at the same time?" Jennifer thought to herself. She racked her brain for any possible answers. Finally, after a few seconds of thought, a light bulb went off over her head.

"That's it!"

Meanwhile, Adell and Champloo were both still going at it, Adell gaining the upper hand thanks to his clones.

"What's wrong, Champloo? No clever cooking analogies for this?" Adell taunted as his other two clones threw rapid fire fisticuffs at the slowly retreating Demon Chef.

"Humph. A good chef knows when it is time to stop talking and start sizzling!" Champloo replied, kicking away one of the clones that got too close to him. He ducked underneath the hay-maker that the other clone threw, and delivered a savage elbow to its gut, making it fly into the other clone and knocking the both of them back even farther. "Alright, Adell! You've been safely nestled in the frying pan for far too long. Now let's see how you like being in the fire!"

With that, Champloo lunged very high into the air, somehow managing to stop in midair high above Adell and his clones.

"All for taste!" Champloo declared, before he began to move his fists at an unprecedented speed. His fists moved so quickly that he created friction in the air, fiction that was strong enough to bathe his arms in flame. As he kept punching the air at rapid speeds, a huge fireball began to form in front of him, making things much more hot for Adell and his clones.

"Crap... This isn't good," Adell growled, feeling the nearly unbearable heat coming from Champloo's ultimate attack. His clones weren't feeling much better either.

"This is it, Adell! You may have survived all the side dishes, but now it's time for you to face down the main course!" Champloo said. "Take this! Kitchen fist ultimate style attack, Flaming Stir-Fry!"

And after he said that, Champloo delivered a mighty punch to the massive fireball that he had created, which caused a massive ancient-like Tiger made completely from the flames to shoot out of them and headed straight towards Adell and his clones.

Adell was able to jump out of the way in time, but his clones stayed behind to try and block the attack from hitting their master. They succeeded, but the resulting explosion destroyed them and caused them to become nothing but mana.

Champloo landed back down onto the floor, a huge smirk on his face. "Heh, that takes care of the leftovers! Now it's time to finish off dessert!"

Adell growled, but didn't say anything. Champloo wanted to unleash powerful attacks, did he? Well then, he'd see a powerful attack alright!

But before Adell could begin to close the distance to unleash his Vulcan Blaze, he caught a glint of light from the corner of his eye.

Both he and Champloo turned towards the light…and blanched upon discovering that Jennifer was unleashing her own ultimate attack. She was spinning the robotic hand of her own creation at high enough speeds to bathe it in light, lighting being drawn towards it.

"Forgot about little old me, boys? That's gonna cost ya!" Jennifer declared, before unleashing her most powerful attack; The Godhand.

The robotic hand, surging with power, fired a huge beam of light from within itself. And as the light got closer to the other two Fist Masters, it took on the shape of a giant hand, much like a hand of judgment that was going to crush them.

Sadly (for Jennifer), since Adell and Champloo were able to see it coming, they easily dodged it by jumping as high into the air as they could.

…But that was all part of Jennifer's plan.

The second they got into the air, Jennifer launched a second Godhand from behind her back, catching both of them off guard. Adell was able to escape in time by making his body become dead weight, dropping fast enough to avoid the giant energy hand. But Champloo wasn't so lucky, and he was ensnared from head to toe in the hand.

Adell witnessed this, and was glad that he managed to escape. Now all he needed to do was take out Jennifer, and he would be the...

His thoughts abruptly cut themselves off, when he was somehow ensnared within the first Godhand.

'No way! She can fully control where they go now?' Adell thought in a panic before he felt himself get yanked towards the Blond Genius.

Jennifer laughed triumphantly as she positioned the two trapped fighters over on top of the Deathblow Panels.

"Sorry boys, but this match belongs to me!" She declared with a cute little wink, before making both of the hands explode.

Normally, both Adell and Mr. Champloo would have been able to withstand such an attack. But thanks to the Deathblow Panel, they were both taken out in the resulting explosion. The Godhands released the two of them, their limp bodies crashing to the ground below. They were singed and badly hurt, but the two of them would live.

The Triple B (Brainy Buxom Babe) flashed her fingers in the victory sign, grinning from ear to ear. "Hurray! Brains once again triumph over brawn!" She cheered.

"Jennifer!" A rather deep voice called for her. "Are you in here?"

"Oh! Yes, I'm here Captain!" Jennifer called back. "Come on in! I just got finished with a vigorous training session!"

A few seconds later, Captain Gordon (Defender of Earth and Jennifer's superior), walked into the room. He looked a bit taken aback by the two lifeless smoking bodies in the room. Right behind him was Thursday, The All Purpose Robot and Jennifer's very first creation that she made when she was only 5 years old.

"…I see that you held nothing back, as expected," Gordon said after clearing his throat. "Very good! After all, a fellow Defender of Earth must keep their body in peak physical condition at all times, in the case of an emergency!"

Jennifer giggled cutely. "Thanks, Gordon. Did you have something to tell me?"

BEEP BEEP BLIP BEEP. GORDON AND THURSDAY WERE TOLD TO TELL CREATOR JENNIFER THAT BEAUTY QUEEN ETNA AND FALLEN ANGEL FLONNE REQUEST HER PRESENCE. Thursday said in his robotic voice.

"Hmmm. I was just about to head back to my lab, though. I have a feeling that I'm getting close to a huge breakthrough in inter-dimensional traveling!" Jennifer said, scratching her chin. "Thursday, could you tell them to meet me in my lab instead? And while you're at it, take Adell and Champloo to the infirmary?"

BEEP BEEP BLIP BEEP. UNDERSTOOD, JENNIFER. Thursday replied.

"Thanks!" Jennifer said with a wink as she left.

"Arrgh, I can't believe that big-titted bitch disobeyed a direct order from the likes of me!" Etna growled, kicking a random prinny out of the way and causing him to explode in the middle of a freshmen crowd of demons as she and Flonne were on their way towards the Buxom Blonde's science lab.

"Now Miss Etna, I'm sure that Miss Jennifer had a very good reason for having us come to her instead of the other way around." Flonne said with a tiny frown. "Who knows? This breakthrough that Mr. Thursday said she was close to may be just the thing that gets Sir Laharl out of his boredom!"

"For her sake, it better be…" Etna groused,

It wasn't too long before the duo found themselves before Jennifer's lab. The door was closed, but some bright light could be seen pouring from the crack below.

"Humph. Let's just see what Little Miss Smarty E-Cup is up to…" Etna said with a toothy smirk on her face. Without another word, she kicked the door in, nearly sending it flying off the hinges. "HEY, JENNIFER! JUST WHAT THE HELL ARE…you…"

The sight that greeted Etna and Flonne was enough to make the normally mouthy Beauty Queen silent.

Jennifer slowly turned away from the large sphere of light that nearly filled half of the room, a look of extreme triumph on her face.

"Flonne…Etna…could you please go and gather the rest of the gang? I have something that I want to show them…"

A few minutes later, all of the top fighters that resided at Evil Academy for the time being were gathered within Jennifer's lab, more than a few of them curious about the large sphere of light.

"So, Tits, what's with the indoor light show?" Gig, the foul mouthed Master of Death who hailed from an alternate world known as Haphness, said. "You trying to beat the netherworld record for the biggest custom disco ball?"

"No, Gig…" Jennifer said, eyebrow twitching at the nickname the Killer of Kings gave her. "You see, I've always been interested in just how many different dimensions exist, ever since learning that there were more netherworlds around then just Harley's."

Harley (or rather, Laharl) growled at the nickname that Jennifer gave him.

"Anyway, I was curious that despite all of the different netherworlds that are about, you hardly ever see more than one Earth. You know the one that Gordon, Thursday, Almaz, Sapphire, Kurtis and I hail from. So, I decided to see if there were ways to both locate and travel to alternate Earths," Jennifer said. She then gestured towards the big ball of light. "And that's where this light comes in!"

"What do you mean? Are you saying that this light can allow one to travel to alternate Earths?" Mao questioned, intrigued at such a possibility.

"Well…yes and no," Jennifer shrugged. "The yes part is that I did indeed find a new Earth that we could travel to. The no part is the Earths part. As in, there is no s at the end of that word. I could only find the one Earth for now."

"Humph. One Earth or a million, it doesn't matter to me. So long as I get to fight and become stronger, what does it matter?" Overlord Prier sneered.

"Though I wouldn't have put it that way, Miss Prier is right, Zam," The Snow Kunoichi Yukimaru said. "Ever since defeating Tyrant Overlord Baal, there really hasn't been that much of a challenge around here anymore. Traveling to a new Earth might give us something to do, Zam."

"Well, I for one am thrilled at the prospect of a new Earth! That means a whole new world filled with people that need help!" Raspberyl, ever the Demon Delinquent, said in anticipation.

"Oh, you mean like the Earth you 'helped' by convincing those two aliens to team up against it?" Rozalin, Overlord of the world of Veldime and Adell's Not-Girlfriend, deadpanned.

Raspberyl flushed in both embarrassment and a bit of anger. "I said that it was an accident! Geez!"

"And we don't hold it against you either, Beryl," Kurtis, Defender of Earth turned into a prinny, said. "Thanks to all of the clone robots of myself that General Carter created, we were able to take them down with no casualties."

"ANYWAY, let's move on to more important matters," Mao said loudly, changing the subject. "Just how much do you know about this world, Jennifer?"

Ignoring the small thank you smile that Beryl gave him, Mao listened as Jennifer began to speak.

"I'm glad you asked me that, Mao! The truth is that I've been aware of this world for quite sometime. I've had enough time to study it, and learn almost everything about it. And I think you'll be quite pleased with what I'm about to tell you."

"Which is..." Mao urged.

Jennifer smiled as she said the next words. "This world...is filled with pirates and treasure!"

"...So is this world. So what?" Mao deadpanned.

"They aren't just any regular pirates, though. In fact, there are pirates of all shapes and sizes! Guy pirates, Girl pirates, Kid pirates...and that's just the human ones! That world also has things like fishmen, Giants as large as the tallest building in this Academy, and much more!" Jennifer declared. And her smile turned into a smirk as she said her next words. "Not to mention that there are individuals who have eaten special fruits called Devil Fruits..."

"...Devil Fruits, you say?" Mao's ears perked, interested in the name given for these...things.

"Mmm-hm. If one were to eat one of these fruits, they would have a special power bestowed upon them. But I'll bet that you don't care about that..." Jennifer said slyly.

'She's right. I don't,' Mao thought to himself. Sure, the thought of someone gaining a superpower just from eating a piece of fruit was intriguing, to say the very least, but what really caught his interest was…

"No, the thing you care most about is just how it's possible for a single fruit to do that. What you'd really like to do is a little…experiment.' Jennifer said, making her voice sound extra sultry at the end.

Mao's entire body stiffened up at…that word. "…What…did you…say…?" He gasped.

"You heard me, Mao," Jennifer said moving over and bending down so that she could whisper into the Mad Scientist's ear. "Ex…per…i…ment…"

"…Huff…Huff…haaaahh…haaahhh…" Mao began to breathe very heavily, glasses becoming fogged up. Whenever Mao thought about doing an experiment, or hearing about one, he became rather…excited, to put it lightly. And that's just what Jennifer was hoping for.

"Think about it…you could capture one of those Devil Fruit users, strap them down to an operating table like you did Aurum…and then, oh and then…the real fun could begin," Jennifer said.

"…Funnnn…" Mao nearly moaned the word, starting to drool.

"Yes, fun. And if it was a Logia type, you'd have a lot to look forward to. There's even one person that ate a devil fruit…that let's then turn into light."

But instead of fainting like Jennifer thought he would, Mao simply held up a palm that signaled her to stop talking while he wiped the drool off his mouth with a napkin he had in his coat pocket.

"That's enough Jennifer. If you were trying to convince me to go to that world, you had me at the word experiment," Mao replied. "But tell me something. Why do you want me to go to that world so much?"

Jennifer began to look a bit sheepish. "Well…the truth is that I…want you to take over that world."

"WHAT?" Everybody present in the room shouted at once.

Jennifer, a Defender of Earth, one of the good guys…wanted a demon like Mao to take over an alternate world?

"Just what is the meaning of this, Jennifer? Why would you want Mao to take over a world? As a Defender of Earth, the very thought of such a thing should go against everything that you stand for!" Gordon declared.

"I know that, Gordon!" Jennifer said a bit heatedly. "I wouldn't just ask Mao to do this for kicks, you know! It's just that…from what I've seen of that world, its heading downhill rapidly every day."

The Buxom Blonde got a furious look on her face that Gordon had never seen before as she said her next words. "And it's all because of that corrupt World Government!"

"World Government? What is that, exactly?" Sapphire Rhodinite, the Queen of the Rhodinite Kingdom and Almaz's wife asked.

Jennifer sighed a bit to lower her anger before continuing, lest she release some rather foul language. "The World Government is the main force that controls that entire world, with over 170 countries under their rule. They basically claim that their existence helps to maintain peace throughout that world, using their ultimate battle force, the Marines, to take down criminals and other threats to innocent civilians. And that's true to an extent...

"But trust me, they aren't nearly as pure and just as their image would have you believe. They have done their fair share of unjust, and downright evil behavior in the past as well. Sometimes, the things that they pull are even worse than what some of the most ruthless of pirates can even dream of! And what really makes me mad is that whenever they do such things...they always claim that it's for the 'greater good', that it's justice.

"What I'd like to know is...what kind of justice justifies hunting down an unborn child and its mother, and striking them down for the child simply having the blood of a supposed criminal? What kind of Justice justifies destroying an entire island full of scholars, just so that the truth of something called the Void Century doesn't get out? What kind of Justice justifies taking bribes from a fishman who is making life a living hell for innocent people, just because he sees humans as less than dirt?

"And most importantly...What the HELL kind of 'Justice' justifies the mere existence of those vile people called the World Nobles?"

"Heh. The way you sound, these 'World Nobles' must be even worse than Baal himself," Gig quipped.

"...They're just as bad, if not worse," Jennifer replied. "Slavery, murder, arrogance, doing whatever they like, no matter how cruel, simply because they know they'll get away with it...those bastards act superior to everyone and everything else simply because the blood of the creators of the World Government flows in their veins. As far as I'm concerned, anyone who willingly does crimes like that deserves punishment, no matter who they are or whose bloodline they come from! And the fact that the World Government, the Government that is supposed to represent Justice to everyone, simply lets these fiends get away with it, just makes me lose all hope for the future of that world as long as they are in control."

Jennifer turned to Mao. "That's why I want you to take over that world. From the time that I've spent here, I can say with absolute certainty that you would be a much better ruler. All of the demons here adore you, even if they would rather die than admit it. Plus, your father was a benevolent ruler himself, so that just increases my conviction! That world needs to be led in a new direction! ...Because at the rate its going at right now, it'll be just like how the Earth I hail from used to be, merely hundreds of years away from self destruction.

"As a Defender of Earth...that title doesn't mean just the one Earth that I come from. I believe that it includes all of the Earths that exist in the Multiverse. And this Earth...the one that I can see at this very moment...is the one that needs my help the most. So, Mao...I will do all that I can to help you conquer that world, so that its innocent inhabitants can live without fear...and so that its most vile villains can be brought to justice. After all, isn't it one of the duties of an Overlord to conquer worlds so that he may expand his own netherworld?" Jennifer said hopefully.

"...What did I say before? You had me at the word experiment!" Mao said with a toothy grin. "And well...if I have some extra time on my hands after completing all of the new tests that I'll have, then sure. I could use a world filled with exceptional humans under my control!"

"You mean under our control," Laharl declared, staring Mao in the face. "There's no way that I'll let you expand your netherworld like that! We do this together, or we fight for it!"

"That's right!" Overlord Zetta, an Overlord that got himself trapped in the form of a book spoke up. "Don't forget, I've become the Sacred Tome, the most powerful artifact in netherworld history! This will go a whole lot smoothly if you've got me on your side. I've been meaning to expand my own netherworld after I found a way to get my body back!"

"Don't forget me!" Rozalin declared. "I was once the God of all Overlords. I deserve a piece of the action as well! Not to mention that Adell would love the chance to fight all new powerful opponents!"

"Heh ha ha ha ha ha!" Sounds like a party! You can count me in too, Tits, so long as I get to destroy someone!" Gig crowed.

One by one, all of the people present threw their hat into the conversation, agreeing to go through with this plan, and agreeing to join in as well.

Jennifer gained a huge smile on her face. "You guys...thank you so much! With all of us working together, I know that we can save that world!" She gushed.

"Humph. Fine! We'll work together and all claim that world as our own!" Mao grumbled. But then, he got a sly grin on his face. "And what better way to take it from the World Government, then acting as the thing they despise the most?"

"Eh? What are you talking about, Mao?" Almaz, Hero of both the netherworld and earth, as well as Sapphire's husband, asked.

"What I'm talking about, is that we haven't used all of those pirate ships we took from the Item Pirates in quite sometime, right? So, we fly them through that light portal, treat ourselves like real pirates, and really give the World Government something to worry about! And the name of our Mega Crew? None other than...the Demon's Hymn Pirates! We'll have our Academy cheerleaders hum a little haunting melody whenever we appear, so that we live up to our name as well!" Mao declared. "Just one problem? What should we do first in order to make our presence felt in a big way?"

Jennifer smiled again. "I was hoping that you would ask that. I've also been studying about something big that's going to happen in that world in a few days. I think it was called...the 'Whitebeard War'..."

Phew! I have to say without a doubt, that this is the longest first chapter of any story that I've ever written, if not the longest chapter I've ever written at all! ('There's Fanfiction about us' chapters don't count, since I just copied and pasted most of the content of each chapter.

Anyway, I hope you enjoyed this opening chapter! This will be the first ever Disgaea and One Piece crossover ever on this site, so I'm happy! And don't worry, Mao and friends won't just waltz into the One Piece world and take over, since that wouldn't make for a good story. You'll see what I mean in the next chapter, which will hopefully come before Pokemon Black and White come out. Otherwise, it'll be a very long time before that happens.

Catch you Next Continue!