A.N: Sorry for the short and vague prologue. It's just how I like to start my stories. I will be trying to make the chapters from here on out longer and fleshing them out. This chapter will focus mainly on Aqua. Ventus and Terra will make their first official appearance in the next chapter.

Disclaimer: Kingdom Hearts is owned by Square Enix and Disney. I own nothing.

Sora and Aqua's Ages: 14

Italics and bold words and paragraphs equal letters, books, documents, etc...

Chapter 1: Letters and Keys

-Land of Departure: Summit-

Aqua sat at the edge of the Mountain's Summit, reading the recent letter she had received from Sora. Ever since they met, they had been exchanging letters due to their training to become Keyblade wielders taking most of their time, leaving them little time to see and spend time with each other. A lot had happened in the four years since they met.

They decided that the best way to keep in contact was by letter through the use of enchanted envelopes that they had been given by Master Yen Sid. They were enchanted in a way that the envelope would magically transfer the letter to the other envelope so to save time. She has kept every letter he has sent her. Reading what he wrote to her always brought out a unique happiness that she rarely showed anyone.

There was just something about Sora that made her heart beat faster. She couldn't place her finger on what it exactly was, but from the way he wrote his letters, he felt the same way. With each letter he wrote, she could feel the passion he put into each of the letters, so she did the same.

These emotions were new and exciting, but they were also a bit nerve wracking. Aqua would always get anxious whenever Sora didn't reply back after a few days. She would always find herself bitting her lip, eager to read what he wrote. She always found it endearing when he asked how she was doing or what she was up to or just about anything about her in general. A warm fire burned in her chest with each word she read. The newest letter he had wrote had definitely caught her attention and surprise as she reread it for the third time today.

Dear Aqua,

How have you been? I hope that your training has been going well. I'm sorry I haven't written to you this past two weeks. Master Yen Sid and King Mickey even have decided to step up my training. So now that I have time to write to you, I can finally tell you the exiciting news.

I have finally done it. I was finally able to call upon and summon my very own Keyblade. For the first time in my life, I've called upon a Keyblade. Can you you believe it. It chose me. The Keyblade chose me. Words cannot begin to describe my happiness.

Anyways, the Keyblade is called the Kingdom Key. According to Master Yen Sid, it's the most basic of all Keyblades, though he also said that appearances can be quite deceiving. It looks like a classic skeleton key, approximately 3.5' in length with a long silver chain attached to it, extending from the hilt. The token that's attached to the chain, funnily enough, it shaped like King Mickey's head. The teeth of the Keyblade are shaped like outline of the crown on the crown-shaped necklace you got me for my birthday last year. The blade and teeth are silver, while the rainguard is blue. The hilt is gold and the pommel has a nice, black leathery grip.

I was hoping to tell you all this in person, but I couldn't wait any longer. I just had to tell you as soon as possible. It seems Master Yen Sid and King Mickey are stepping up my training. They want me to be as ready as possible. I don't fully understand why, but I get the feeling that they are hiding something. It's odd, but I get this weird feeling that something is going to happen soon.

I am having these odd dreams as of late. They have been become rather frequent, but always vague and unusual. Yet these dreams always happen in the same place, every single time. Whenever I have these dreams, I find myself standing in this throne room that is made of completely white stone. I always find myself standing near the entrance on this blood red carpet with golden trim leading towards this lone, single throne made of gold. It's simple and basic in design. Lining the carpet are six white pillars of stone, three on each side, with a seventh pillar located directly behind the throne.

A man sits upon the throne, wearing a pure white, hooded coat, with matching pants and boots, all with golden trim. I can only make out the lower half of his face as he always keeps the hood up, which obscures the upper half of his face. He is always with a grin on his face.

It's like he knows I'm there, yet doesn't see me or ignores me. It's weird. I don't understand these dreams, yet at the same time, it's like I've been there before, but I know I don't know where it is. The throne room always give off this pulsing pressure. The source is the man and throne itself are the main source of this pressure and yet the whole room feels as if it's alive, like it's a living being of its own will.

I'm sorry for being late in replying to your letter, and I hope my news more than makes up for it. I will be awaiting the reply of your next letter eagerly, Aqua. I can't wait to see what you have been up to.

Truly Yours,

Sora.

Aqua smiled and blushed slightly as she read the end of the letter. Though she did frown in concern as she read the part about the weird dream he's been having. It didn't make sense for it to always be the same. She never heard of a place with a white throne room like that. Maybe Master Eraqus would know, but she wouldn't ask him. Not yet at least. Sora trusted her with this bit of news and she would only discuss it with his permission.

The news of him, calling upon and summoning his first keyblade had shocked and surprised her, but it also made her happy to know that he summoned his Keyblade. She remembered Terra when he summoned his a few months ago. The sixteen year old had been ecstatic about summoned Earthshaker. It was an exciting moment for them all. Since then, Terra and buried himself completely into the keyblade training.

It left her to wonder when she will call upon and summon her keyblade. Master Eraqus had told them that all Keyblade wielders gain the ability summon a keyblade at random, even if they are bequeathed a keyblade at an early age. Wether through intense training, a connection to a strong emotion, a memory, a dire situation, or through desperate need, any wielder can summon their first keyblade in almost any kind of situation.

Aqua looked up towards the clear, stary night sky and smiled softly. She couldn't wait to call upon and summon her first Keyblade. She wondered what it would be like, how it would feel, and what her keyblade would look like. She could see it now. She shivered slightly as the wind blew lightly against her face.

As she stood up, Aqua reached out in front of her with her right hand, palm forward. Her hand was slightly curled as if it was grasping something invisible. Closing her eyes, She smiled softly and fondly at the memory of her thirteenth birthday. The outfit that she was wearing was the one that Sora had gotten her. It had consisted of a tank top, a long black skirt that revealed her legs on one side, black boots and a pink zipped-up hoodie, that she rolled the sleeves up. They had gotten permission for Sora to visit her and spent the whole day together. They spent the night watching from the Mountain summit the stary night sky, just like on this night. They talked and laughed, and discussed such things as the future and even silly topics. The had fallen asleep with her leaning up against them and using Sora's shoulder as a pillow. It was quite embarrassing when Terra had woken them up as he had taken a picture with this old fashion camera that he had been given by Master Eraqus. She didn't speak to Terra for a whole week after that.

As Aqua fondly remembered that day in her mind, a soft, unfamiliar sound had rung in her in her ears and she instinctively closed her hand in around a thin, round object. Her eyes shot opened and went wide at what she held in her hand. It was a Keyblade. It was very first keyblade. She had done it. Aqua had finally had called upon and summoned her very first keyblade. She examined the blade with careful eyes.

The blade of the Keyblade was a predominately dull, metallic blue color. Two small teardrop-shaped gaps rested in the base of the blade and in the shaft of the blade, near the tip. The head of the blade was a rough diamond shape with the left corner absent, and a smaller white diamond located on the inner edge of the right corner. The teeth of the blade were formed by four blue spikes lining the edge of the blade's head. The handle was smooth and made with a black leathery grip, while the guard was predominantly white and doesn't fully connect to the keyblade. The chain was made of steel links and had raindrop-shaped tokens. Aqua noticed the keyblade hummed as she held it. It gave off a warmth and a soft light. She smiled as she thought to herself. It felt as if the keyblade was alive.

"What should I call you?" Aqua spoke out loud to the keyblade. It hummed in response. Her eyes widened even further before her face took on a serene and genuine expression. She looked back towards the night sky. A smile gracing her lips. "If that's what you wish, then so be it. I shall call you Rainfell from now on."

-Unknown Throne Room-

In the Unknown Throne Room, the man in the white coat sat upon the Golden Throne with the same Cheshire grin as before. The pieces were finally being set. Oh how he has waited. He has been patient for this long and he would continue to do so. They wouldn't even know what they were truly seeking. He would let them come to him. After all, all subjects to the true King would eventually seek an audience with him. He laughed out loudly. Holding his stomach as he bent over on the throne. He spoke out softly.

"Be patient, The Seven Hearts shall be reunited and forged back into one true Heart, Beloved."

-End Chapter-

An: You can find the description for Rainfell and the Kingdom Key on the Kingdom Hearts Wiki.