Hey everyone, just wanted you to know that this story was originally my sister Mythluver's. You may recognize it, and you can private message her for her confirmation. Beginning credit goes to her, since she wrote the first few chapters. Writing may get slower towards the middle, but i've got a lot of stuff goin' on.

As always, i only own my Oc/OCs. Katana and all of her forms are shared by Myth and me. She'll probably end up popping in as well, i'll tell you if a chapter's hers. All of the other characters are owned by Hiro Mashima. Thank you, and please enjoy.

Chapter 1

Go Inside

She stood outside of the huge wooden door, shivering nervously, but smiling excitedly. She was standing in front of what she hoped would become her new guild. She looked down to check where she hoped they would put the guild mark. For a bit, she just stood there and waited.

"Just go in there," she heard one of the voices call. It was high and soft, and so far possessed no body.

She rolled her eyes and whispered, "Fine, I'm going. Will you tell Demon to get ready? I wanna have her out for when they ask what I can do."

"I'm ready," growled a much eerier voice that belonged to her only voice that currently had a body she could summon, "But I wanna stay out, kay. No more show and leave."

She brushed her caramel blond hair behind her back, running her fingers through the waves and working her way through a snarl. She took her aviator goggles off her head and blew on them, then cleaned them off on her scarf and replaced them on top of her golden, floppy head, above her black cloth and iron head band.

She just wished that she could've avoided the last fight, but maybe the band aid and cloth made her look more ferocious, adding to the already striking look the scar across her eye and tattoos down her cheekbone. You could almost forget the freckles when you saw her sparkling blue eyes and black, biker vibe. Even without her forbidden magic on display.

"Hey, you want me out or not?!" Demon called, making her ears ring. She moaned and summoned Demon, the black skinned, leather vested demon slayer out of her mind. They had the same face, and same figure, but that was it. Demon was only her nickname, because that they were pretty much the same person, though they had different, well, everything else.

Demon's black hair was tousled and shiny, but her braid went all the way down to her hip. Her demons horns were red like her left eye. Her right one was white, like the tattoos that branched down the side of her face. Both of her eyes were snakelike, and reminded Katana of the very same monsters Demon had learned from.

"Alright, I'm here, let's get going," Demon chuckled, patting her on the back, "And remember, don't freak out. It's nothing more than yet another guild interview. How many are you going to go through before you finally get accepted?"

"This should be the last one," she objected.

"You say that every time."

"Well, they accepted that Lucy Heartfilia, didn't they?" she pointed out, "And it's not like she's that powerful. They haven't really set the bar very high."

"Hey, she's friends with the best, so don't go making enemies with her."

"Thanks, I wasn't planning on it."

"The thought crossed your mind while I was in there," Demon sighed, "Now are we headed in or not."

"I can't wait 'till I can summon Angel, or Beast."

"I'm not that bad."

"Demon," she groaned, "Are you kidding me? You feed off of the negative energy and life of others, and like to kill! A lot! How did I ever turn out to be you?"

"My life was fine, before I died for one thousand years. Me and Angie were feared and awed by all. When you can summon her, I'll let you off the hook for being a weakling."

"If I were a weakling, what would that make you?"

"Better, duh."

"Let's just get in there so that we show them what we can do so I don't need to travel around and drag your lazy ass everywhere anymore," she groaned, "And maybe I can find some work."

"And eventually some food," Demon chuckled, inhaling and baring her quartz colored fangs as she gorged herself on the surrounding anger, "I can't go any longer without animal flesh."

"Please don't say that," she told Demon, rolling her eyes and taking another step up to the door. With one final, wavering breath, she pushed the giant door open and stepped into pandemonium.

Chairs and tables were thrown haphazardly across the floor, and the wizards were more like a giant pile of tangled limbs. At least, the boys were. The girls were standing off to the side, either drinking, laughing, or simply glaring at the guys. At least, until they heard the door open.

The entire fight just froze. It was so silent that she could heard the beer dripping from the tap behind the bar. Everyone stared at her with wide eyes, frozen in the middle of slapping, punching, biting, kicking, poking, smashing, or magic using.

She couldn't see their guild master, but she knew what he looked like, so she would know him when she saw him. She recognized Mirajane behind the bar, smiling and cleaning. She, at least, was unperturbed by her arrival.

Demon glared around at everyone, but she just sighed, shut her eyes, and walked slowly up through the hall. People brushed themselves off and stared at her. Many were wondering what the hell she was doing there.

"Hey," she said, lowering her voice, but pointlessly. It still reverberated around the room, so she went back to using her normal voice, "Am I correct to assume that this is the Fairytale guild hall?"

"Yes, you've come to the right place," Mirajane replied. Her voice was like a bell, light and flowy. Her hair was light, almost white and creamy, and her eyes were kind. Everything about her said sweet, so much so that it was near impossible that she could have ever been called the "she-devil". Demon was examining her, obviously wondering the same thing. Demon was a demon slayer, who had learned all her magic from her namesake, like the book of Zarif, though she never talked about it. She knew that Demon had had teachers like Deliora, and maybe even Zarif himself, though even she didn't know that for sure.

"I'm here looking to join your guild," she said, not bothering to sugarcoat anything.

"And may I ask your name?"

"Katana Avatar."

"Sword Body?"

"No, nothing like that," she groaned, rolling her eyes, "It's just my name, it has no real meaning. That said…" she started, "my name and my magic have a very close correlation."

"And yours?" Mirajane asked, turning to Demon.

"Katana Avatar."

"Wait," Mira chuckled, "wait a second. I'm missing something here."

"Yeah," said a blond, who had decided to walk up and join their not so private conversation, "You have the same name?!"

"Yes…" Demon said, staring at the new girl. Lucy Heartfilia, Katana realized. She had been involved in the Galuna Island incident a few days ago. One that Demon had been wrapped up in. She hadn't been able to wrap her head around how many demons had been living out on the island without her knowing.

"You're the same person!" said a new man, holding a paintbrush and looking like a blimp. "Your face and form are the same!"

"Yes, thank you," Demon said rudely. Katana stamped down on Demon's foot.

"Shut up, Demon!" she hissed, and they had a bit of a stare off. Finally, Katana looked down in submission. No one could hold their own against Demon's stare. It was one of reasons Katana envied Demon. She could scare a man away with nothing more than a glare. Katana had to bring out her namesake. She liked sharp things.

"Demon," Lucy said, "so that's your real name. I knew that you were only twins."

"Hey, can I join or not?" Katana asked, elbowing Demon in the ribs to keep her from snapping.

"You'll have to wait until the Master gets back," Mira said, "But I don't think he'll object."

"Great, thanks," Katana replied, "What should I do? How long until he gets back? Should I wait here, or…?"

"Yeah, you can stay here," called a new voice from above, on the second floor. Katana looked up to see the S class wizard, Laxus Dreyar, leaning over the railing and eyeing her. It made her feel a little uncomfortable, but she had dealt with worse. Though she had heard of some pretty scary stories about Laxus and the Thunder Legion, "I'll give you the grand tour if you want."

"Thanks, but no thanks. I should probably wait to see if I make it into the guild."

"Master should be back later this evening," Mira informed her, "I can send him a letter about your wanting to join, if you want."

"That'd be great."

"Hey," Lucy asked, when the new girl had finally walked off with her twin, "What's with all of the formalities? When I joined, all I had to do was ask for the guild mark."

"Well, she seems a bit, uh, sketchy," Mira said, also behind her hand, "and her twin? Well, that's not her twin. She wasn't lying, they're the exact same person."

"No way!" Lucy exclaimed, "how do you know?!"

"I'm sensing the same magic from them. Same aura."

Lucy stared at the two for a good long while. One was relatively normal looking, with dark blond hair and pale skin, though her tattoos were a little put offish, and the scar across her eye was just plain scary. Plus the aviator glasses didn't seem to serve much of a purpose, nor did the headband. She was dressed entirely in black, black leather jacket, black sweatpants, even a black bra that went surprisingly well with her outfit.

To say that Katana was dark was nothing compared to the other one. For the sake of her sanity, Lucy had decided to call her Demon, at least inside her head. Demon's skin was charcoal black, and crimson demon's horns poked out of her midnight black hair. One eye was pearl white, and the other was blood red, and white tattoos slid down under her eyes like scythes. She wore a thin, red tank top, like the type you might wear for exercising, and a black leather vest over that. Her feet below her black sweatpants were bare, unlike Katana, whose feet were clad in black, iron studded, knee high combat boots.

They were quite a sketchy pair, and there was no way that had to do with how all the boys were ogling the two, front and back. Even Laxus had come down to talk to her, which he was currently doing right now. He and Katana were engaged in conversation, while Demon had completely disappeared. Seriously, Lucy thought, she wasn't that pretty.

"Hey!" called a familiar voice from the doorway, "Laxus, what're you doing?! Come over here and fight me!"

Normally Laxus would've just ignored the idiot, but this time he turned, angrily, and shot him full of lightning. Katana looked up, and smiled a little. "So that's Natsu?" she asked Laxus.

"Yeah, the little punk," he replied, blowing smoke off of his fists, "So, you want to join Fairy Tail, huh?"

"That is correct," she replied, and Lucy watched her look curiously at Natsu as he got up, scorched, and stared at her in return.

"Who's the new girl?" he asked, causing Lucy to blush for some reason. Why was she feeling jealous? There wasn't any point to it. It was just, she was the new girl. She had only joined a few weeks, maybe a month ago. It was her thing. She barely knew everyone here, and this girl just happened to show up? This couldn't be a coincidence.

"I'm Katana," she said, holding out her hand.

Natsu shook it, smiling toothily and staring at her face. "Sword, huh? Cool name. I'm-

"Natsu, I know. I've heard of you."

"You've heard of him?" Laxus asked, staring murderously at Natsu.

"I've heard of all of you, you know. Or, some of you, at least," she said, "I know Erza, Mira, Lucy, Gray, Mystogan, Gildarts, and a few more. Even the Thunder Legion."

"What about the Thunder Legion?" asked Freed, as he and the other Thunder Legion members walked over to see what was going on? Lucy moaned, watching as Freed continued to converse with Katana, who had decided to ignore Laxus and Natsu's heated stares from either side of her.

"So, you're a wizard?"

"Yep!" Katana said, walking out from between the Natsu and Laxus, to ensure her safety.

"May I ask?" Freed said, "What type of magic do you use?"

"Well…" she said hesitantly, "the less people know about my magic, the better. Including me, it would seem."

The other girl, Demon, suddenly reappeared by Katana's side. "I told you, you have to discover it all for yourself. Don't go crazy, but please, be as angry as you want." Demon finished with a strange grin, and then she inhaled through her mouth. Dark energy flowed from Katana into Demon's mouth. She licked her lips, and then turned to Natsu and Laxus, who were exchanging not so friendly banter. Demon continued to repeat what she had done to Katana, except even more black tendrils seeped from the air surrounding the two.

"Oi, stop it," Katana said, kicking Demon in the stomach. She closed her mouth reluctantly and looked down, submissive.

"There are two of you?" Bickslow asked, looking Demon up and down and up again.

Lucy couldn't take it any longer, she was too curious. "You just appeared," she said, speaking directly to Demon, "How do you keep appearing? It's as though you're turning invisible. Are you turning invisible?"

"Naw," Demon said, "I'm appearing from out of her mind."

"I thought you told me not to tell anyone about my powers until we are definitely allied with them. We can't just give out information like that!" Katana growled, glaring at Demon. Lucy felt even more curious about her so called magical power. To her, it seemed like it had to be a bluff. There was no way that she was summoning a new, real human being out of the depths of her skull.

"You can trust her," Demon said, "you don't even need to stay. I can send you back if you want."

"Fine," Katana conceded, "but tell her only what you deem necessary. And you might as well tell Freed. He's smart." Katana sighed, exasperated, "Ah, what the hell. Tell them all."

"Tell us what?" Natsu asked.

"Tell you about our magic."

"COOL!" Natsu exclaimed, plopping himself down on the bench beside her. Laxus sat down on her other side, and Freed stood by them, beside Laxus. Lucy stood back and watched Katana disappear, and Demon sit down in her place.

"Woah, she disappeared!" Laxus said, sounding a little put out about his loss.

"Yeah, I let her leave," Demon told him, rolling her eyes, "She's been searching for a guild for years. You'd be surprised how much magic energy it took her to stay out in the real world for that long. She prefers it out here, it's where she was originally from. But, ever since her destiny was decided, she has needed to take breaks from time to time. Not long ones, mind you, but she gets tired out eventually."

"Her destiny was decided?" Lucy asked, "What do you mean?"

"You read, right?" Demon asked, "You've read the old myths."

"Yeah," she and Freed responded together, while Laxus stared at her dazedly and Natsu just looked confused.

"Well, you know the one, Normadorrira, I think. In any case, it's about a person, a wizard, who's doomed to live on forever. She keeps coming back, in many forms, with different magic every time. As she progresses, in each life, she gains the power to summon her previous entities."

"No way!" Freed gasped, "That's you?!"

"Well, that's her," Demon clarified, "I am just one of the past forms. The oldest actually. Have you heard of the twins, sometimes known as the Afterlife?"

"OH MY GOD!" Lucy cried, "The Afterlife?! I've heard of you! You and your sister destroyed whole cities! You killed angles and demons! You saved millions of lives!"

"I didn't save any lives," Demon sighed, "I was the one who destroyed cities. I burned them to the ground, and savored the taste of every soul. Granted…" she said, "That was before I gained a human, or semi human form. And the demon slaying was all me, so I suppose I saved a few lives through that."

"What about your twin?" Laxus asked, staring her up and down, apparently trying to imagine another one of her and smiling in a way that made Lucy's skin prickle uncomfortably. At least he never looked at her that way.

"She isn't strong enough to summon Angie. Yet…"

"Angie?" Laxus smirked, "as in the Angel Slayer!"

"Yeah," Demon said, "My twin sis."

"So you're the Demon Slayer?" Natsu asked.

"Yep, that's me."

"No way!" Laxus gasped, leaning against her a little. She shoved him back.

"And the thing you did earlier, with the black magic?!" Lucy asked, "What was that?"

"I was thirsty," she sighed, "That was negative energy. Normally I feed off of Katana's anger, but yours was good, too."

"So what you're saying is that you were eating me," Laxus smirked.

"Not even close."

"Hey, I'll take what I can get," he chuckled. Suddenly he stood, as the wooden doors burst open.

"I'm home!" yelled an old, high pitched voice, and the entire, considerably large group who had slowly been gathering around Demon stood as well.

The Master was back.

Please tell me how you liked the chapter, and, unlike Myth, i don't know who i want Katana or Demon to end up with. I'm completely in the dark about how i want this to go. Please leave ideas in the reviews and i'll get back to you. Thanks again!