A/N I do not own Kingdom Hearts and any characters, worlds, or such inside of it. If I did, this plot- the only thing I do own- might be canon and you'd probably all hate me. Or love me. Only time will tell.

Chapter 1

~Day 23~

A world that exists in the shadows, blocked off to the rest of existence. A world so empty of people to reflect the emptiness of the few that reside within it. A world where those rejected by both light and darkness gather. A world wherein is the heart of nothing. A world that never was. This world was home to Organization XIII, a people whose sole wish in their half-life was to obtain Kingdom Hearts, and thus gain hearts of their own, taking them from their Nobody state and turning them into humans again, so that they could truly, finally exist.

Looking over the city that blanketed the entirety of this world was a white castle, the haven of the Nobodies. One corner of this castle was a place known as the Addled Impasse, where one wall was completely glass and allowed a view out into the eternal night sky. It was in this room where No. VII of the Organization, The Lunar Diviner, Saïx, awaited the return of one he once called friend.

Since he was facing the night sky, his pointed ears were the only warning the blue haired man had when the darkness formed behind him. He turned around, seeing the blackness seem to ooze from the rise of the portal before a man his own age stepped through the portal, holding onto a young girl by the arm and pulling her through as well.

"This is her?" Saïx's voice remained even, but his companion, Axel, knew when he was displeased. It was pretty much all the time. Saïx's golden eyes examined the young girl. Only fourteen years in age, with auburn hair that was hardly past her chin at its longest. She was looking around the room in wonder, her lips slightly parted by her fascination. Her eyes were slightly glazed, and her fists kept tightening and loosening, as if she wasn't sure what to do with them.

Axel crossed his arms, already bored with the situation. "Yep. I doubt she'd even been back from her travel across the worlds for a few hours. She hadn't even visited the mainland of their islands yet. Kept calling out for the Keyblade Master when I brought her to Castle Oblivion. She fell unconscious almost as soon as Naminé started wiping her memory, then she woke like this. It's almost like she can tell something's missing."

"You should not be talking so freely about her."

The fire-haired man scoffed at Saïx's warning. "Puh-lease! She's not paying any attention." To prove his point, Axel used his gloved hand to toss her hair. After several seconds, she seemed to realize her messed up dark strands were obstructing her vision, and she quickly fixed them away from her face before returning to staring at the world around her. She wandered away from the two men, almost unaware they were even there, and meandered to the glass wall. "This makes three zombies in less than a month. Are we that desperate for new people?"

"Xemnas wants her for his own purposes."

"That doesn't sound weird at all." Axel couldn't force down the smirk inside him, though Saïx showed no sign of amusement. "She couldn't even put up any form of fight when I pulled her from Destiny Islands. Why go through all this trouble to watch a Princess of Heart? Unless... you have something else going on?"

"Anyone from Castle Oblivion suited to know will be informed when they return." The pointed look from Saïx to Axel showed the conversation was closed, and Axel better be on his way back to Castle Oblivion. He'd been supposed to go that day anyway before Xemnas had asked them to get the Princess. Muttering to himself about how outrageous it was to let in someone that wasn't a Nobody, Axel followed the silent order and summoned another Corridor of Darkness. After he had walked through it and the portal was gone, Saïx silently turned back to the girl watching out the window. Silently, he came up behind her, standing comically at almost twice her height. "Do you know why you're here?"

The girl never responded, proving that Axel was right: she wasn't hearing a word they were saying. He presumed that if he had a heart, he'd probably be irritated by her obliviousness to her surroundings. He reached out his hand to her small shoulder and quickly turned her around to face him. She seemed at first confused to be facing just a black cloak, but then she looked up to find his face.

When he was sure he had her attention, Saïx began: "You have lost your heart, like all of those who live in this castle." It was a small movement, but the trained eyes of the berserker were certain she'd flinched. "The only way to become complete again is to join us, and help us gain Kingdom Hearts."

"Kingdom Hearts." The girl mouthed the words, testing them on her lips. They felt incomplete.

"Should you so choose, you will join us tomorrow as No. XV."

The girl's fists clenched again, holding tight longer for this time as she squinted her blue eyes in thought... then, she slowly loosed her body, and nodded.

His face still a blank, as it seemed incapable of being anything else, Saïx turned around and made his way to the hall that led away from the room.

Her hand rose to her chest, above where her heart should have been. "Kingdom Hearts."

~Day 24~

Where Nothing Gathers: The meeting place for Organization XIII accessible only through teleportation. Thirteen thrones, one for each true member of Organization XIII, were evenly placed along the circular wall, all at different heights based off of their Nobodies' preference. It was so otherwise blank, it made a perfect reflection of the emptiness those who would sit in it felt. Among the members of the Organization, it was more commonly called the Round Room.

When Roxas had woken up that morning and gone into the Grey Area, where he had so far received all of his missions, one of the first things he had done was ask Saïx when Axel would be back, to which Saïx promptly replied, "Go to the Round Room." Roxas - with his so far undeveloped mind and unknowing of how Saïx disliked anything not in his control, including Roxas - had assumed that this meeting would share of whatever mission Axel had been sent on. Though Roxas wasn't aware of his emotions at the time, anxious is a good enough word for those with hearts to describe how he was feeling as he silently hoped that it would be soon when his friend and mentor would return.

In his eagerness to hear about what would be said, he was among the first in the room. Only Luxord and Xaldin were there when he arrived. He had seen everyone else that hadn't gone to Castle Oblivion, save for the Superior himself, in the Grey Area, so he knew they wouldn't be long. At least, Xigbar and Saïx wouldn't be long. It was kind of impossible to tell for Demyx. And as for Xion, his mysterious, silent companion...

It couldn't be denied that Roxas thought it strange that Xion wouldn't say a word to him on their mission the previous day. Did No. XIV even know how to talk? Well, he was pretty quiet on his first mission, too, so he supposed to couldn't complain.

'I wonder if we'll be paired up again today...' Just as the thought struck him, a cloud of darkness appeared in the middle of the room, and when it faded it revealed Xion, still concealed entirely by the Organization's black cloak; all save for the lips, which smiled up at Roxas before their owner moved to stand below his throne. 'Does No. XIV not have a seat?'

"Good tidings, friends." Xemnas began. Roxas started. A quick survey of the room showed that Xigbar, Saïx, Demyx, and the Superior had teleported in. Maybe Axel was right about him being so spacey, if he hadn't even noticed that... "Today is a momentous day. I am pleased to announce that a new comrade has been chosen to wear the coat."

Though half the room was wishing Xemnas would get a new welcoming speech, and the other half was mentally listing everything they'd need for their respective missions, Roxas's full attention was immediately taken from his curiosity of Axel's mission and suddenly devoted to the person standing on the platform below all the thrones. The small figure's back was turned to him. Instead she was looking up at their Superior on the other side of the room. Still, he couldn't shake the strange sense of familiarity the new member gave him.

"No. XV," Xemnas continued, "Kairi."

A/N Thought 1: What if Xemnas found out very early on that Kairi could use a Keyblade?

To address the fact that Kairi's name has remained the same, if I had changed it to a Nobody name, combined with the fact that she has no memory, she'd pretty much be an OC. No. She's still Kairi. The in-story reason is that everyone in the Organization, save for Xion and Roxas, know that she's not actually a Nobody, and that she is not a true member. Thus, they have no purpose in changing her name. If Xion, Roxas, and Kairi seem OOC at the moment, please remember they have next to no memories and therefore nothing to base their personality off of. Give them a few chapters, and we should be good to go!