Disclaimer: I do not claim ownership of Pokemon, its characters, locations, or names. All of them, with the exception of the original characters, belong to Nintendo. The Little Mermaid and all of its characters are copyright to Disney.

A/N: Yes, Yes, I realize I have two fan fictions...no, three that need finishing, one that needs starting (DG 2, mainly)...yet here I am doing a Pokemon/The Little Mermaid thing. This'll probably get finished quicker. :/ Then I'll work on DG 2, when I have the patience for it..which I don't have after working on NaNo still.

As it is, I don realize someone did this for...Palletshipping, I think, which makes this amusing that I'm doing it. But I didn't even bother reading the other one when I saw it was for TLM, since I knew before then I'd be writing this and had already started planning for it, so I didn't want anything in it to leak over to this because of reading it. So, if it holds any similarity, it is totally coincidental. And before someone says I have no imagination doing this..damn straight. I'm not doing this to be original or any such thing. I'm doing it to try to do a twist on it (if at all possible), and because I feel like it. I'm not trying to impress. I'm writing it for me, and putting it here for anyone that would enjoy it to be able to enjoy it.

For now, I give you the Prologue of Under the Cerulean Sea.

Warnings: The pairing in this is RivalSibling. RIVAL. SHIPPING. Not Advance. And I repeat, NOT ADVANCE. And for good measure...NOT. ADVANCE. I can understand it being mistaken for Advance if I DID NOT SAY IT WASN'T IN MY WARNINGS..but, gods. Read what I write in my warnings, I don't put warnings for my health. That doesn't go to those that read them and understand it already, you get a cookie. XD

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- Prologue -

"Miss Waterflower! Everything has been set up!" The red haired gym leader smiled at the young boy, and he ran off when she shooed him away quickly. She couldn't believe how fast time had gone by; it'd been about two weeks since she had called her sisters – all three of which where vacationing somewhere in Hoenn – and already everything had been set up for the movie she was to direct. Her, a director!

Of course, it was only to save the gym from going totally broke, as without the 'Sensational Sisters' around they had no source of income besides what little they were given from the Pokemon League – that made her scuff, considering they should be paid handsomely considering a few hundred dollars was needed for the upkeep of the pokemon alone - and the gym was falling into disrepair. Only one problem resurfaced, and it was one Misty was sure would be fixed soon enough.

She had no actors. Well, I obviously can't do all of the parts myself. And if no one comes in time... Misty's eyes clouded over worriedly; she had, of course, called Ash right after talking to Daisy. Pleading for him to get as many people as possible to come help her, and he had assured her that he'd do what he could.

No one had shown up. She glanced over at the ship that was docked in the small harbor, the sails loosely waving with the wind; she was glad one of the friendly neighbors had offered it to her for free "What's my part?" a man's voice asked lightly behind her.

Misty jumped, spinning around to look at the intruder of her thoughts; a smile broke out across her face in delight. "Ash, you made it!" she said, and he laughed.

"Didn't I say I would?" Ash asked, and Pikachu poked his head up from behind Ash's ankle, squealing and trotting to the gym leader happily. "And I did get a few to help. They'll all probably be here sometime today if the weather stays good."

"That's wonderful!" Leading the way toward the gym, Misty grinned. She never thought she'd be so happy to see the pokemon trainer; she also never thought she'd be depending on him for so much help, but she didn't wish to dwell on the thought. "I just hope this works out."

"What's it for anyway?" Turning his head, Ash looked at her curiously, hands tucked in his pants pockets. "You said it was urgent, but...you never said why."

"Ah..." The smile turned into a frown quickly; with a sigh, she shook her head sadly. "My sisters are gone and I can't do the water shows anymore, not alone...so the gym is breaking down. I don't have enough money to keep running it, and I have to do something to bring some in, and this is the only thing that'll do it right now and quickly."

"Ha, no sweat. We'll make this a hit, and then everyone will want to come here just to see the gym and you." Pikachu nodded in agreement. "What're you doing, anyway? What part?"

"I'm...I don't know, to be honest. I don't even know what I'm assigning you as yet. Though it should be a big part, just so you don't complain to me." Ash pulled a face.

"I don't complain," he protested, and Misty snorted.

"Unless you get the ego stroke you want, you complain. Complain, complain, complain!" Misty taunted haughtily, and Ash rolled his eyes, gently kicking Pikachu when the rodent laughed at them loudly.

"Do not."

"Do too."

"Do not." Ash crossed his arms, forcing a scowl, and tilted his chin up. "Hmmph. I'm not that-"

"Arrogant? Yes you are." Misty smirked when the dark haired man growled. "Oh, you aren't that angry. You're starting to sound like an Arcanine."

"All because of you," he shot, and she smiled.

"I'm honored I can make you more like a Pokemon." Ash stared at her in blatant shock as she left him outside.

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