Hello, and thank you for giving this story a chance :) Feel free to enjoy and leave a review. Constructive criticism is encouraged. No Flames unless you want an angry me coming after you in retaliation.

I do have a majority of this story already written, so I'll probably update weekly/bi-weekly depending on my schedule and how log it takes me to edit my chapters. As I am doing all the editing, all mistakes are mine, feel free to point them out so I can fix them.

I also do not own -Man (really, why can't it let me write out the full name? *sigh*), I only own Katsu, my OC. If I did own, I would most likely be one of the happiest people on Earth ;)

Without further ado...enjoy.

Katsu stormed through the halls of the Black Order, seething as a storm raged over her head daring any scientist or Finder she passed to approach her. She was in no mood to converse with anyone. What she really wanted to do, was hit something. Hard. And if she understood correctly, Kanda should have gotten back from his mission a few days ago. He would be more than willing to spar with her.

She easily found him in the training hall, practicing blindfolded on the dummies with Mugen. Other than Kanda, who was twirling gracefully around the practice dummies, the hall was clear. Katsu's lip twitched. She had to give it to the Scientists and Finders, they did learn quickly on who to avoid and when to avoid them.

"Oi, Kanda!"

Kanda spun in her direction, Mugen pointed directly at her. "What do you want?" Kanda demanded.

"To hit something. You in?"

There was a pause before the dark haired Exorcist lowered his katana and removed his blindfold. "Che, fine. This dummies were getting boring anyway."

Katsu smirked. "No Innocence." She looked down pointedly at the blade that was still in Kanda's tight grip.

Without a word, he stepped out of the ring of practice dummies to rest the katana against the closest wall. He then walked to the center of the room. Katsu followed suit, setting herself in an offensive stance in the middle of the room.

Kanda fell into his own stance. A moment of stillness followed before the two jumped at each other with a flurry of attacks.

This is what Katsu loved about Kanda. He didn't ask unnecessary questions, and didn't try to cheer her up. Plus he was the only person who provided a decent challenge at hand to hand combat. The others were too dependent on their Innocence.

Katsu snapped her fist aiming for his face. When it was blocked, she immediately shot her foot out. It connect to his stomach with a quiet 'oof'. The attack didn't deter Kanda, however. He was quick to retaliate. His attacks were quick and sharp, causing sweat to break out on Katsu's brow. Kanda was just about to land a hit on Katsu when an alarm screamed through the Order.

"Akuma! An ally of the Earl is trying to get in!"

Both fighting Exorcists recognized the voice of the Gatekeeper and tensed. Kanda's arm froze mid-air as they stared up at the speaker in shock. There was an Akuma attacking? Correction, there was an Akuma stupid enough to attack their headquarters alone?

Blue eyes met silver, determination flashing between the two globes.

They detangled themselves from their fighting stances. Kanda grabbed Mugen and the two of them rushed to reach the front of the Order. Simultaneously, the two of the paused on top of the balcony overlooking the gate to the Order.

Katsu looked down, searching for the target. What she saw made her eyes widen. Her gaze flickered over to Kanda, looking for his reaction, only to see his eyes narrowed staring down at the offending boy.

"You have a lot of guts to come here alone," Kanda called down to the boy.

The boy looked up towards them, seeing Kanda standing proudly, as Katsu crouched low, inspecting the boy closely as she caught sight of his face.

Katsu gasped. She could hardly believe her eyes. It wasn't because the boy had a nasty scar running down the left side of his face, nor was it because his left arm was a mutilated red. No, it was the stark silver hair and silver eyes that was looking up at them. The same as hers. Hell, with how she looked now, she could almost pass for an identical copy of him. It was such an impossible notion, that it left Katsu crouching on top of the gate, unable to move to attack the intruder.

Kanda had no problem attacking the boy. He jumped down, activating Mugen as he did so. He landed before the boy, lashing out his katana. In a flash of white light, the boy stood before Kanda, left arm poised in front of him defensively. No longer was it a deep red. In less than a second it had transformed into a large silver claw.

Katsu cried out in pain and disbelief, eyes never leaving that boy. Clutching her left arm to her chest she couldn't help but stare at him in an angry wonderment. She had felt the familiar warmth of Innocence flow through her arm, simultaneously with the change in the silver boy's arm. She also felt the-sadly-familiar pain of Kanda's Mugen slicing through flesh. The flicker of fear flickered within her chest. The ticklish feeling she recognized instantly, and squashed with annoyance. Why was it these feelings returned, all with the appearance of this boy? She had just gotten them under control!

Katsu stood, watching the boy desperately avoid the flurry that was Kanda's attacks with mild annoyance. It wasn't like her day had been bad enough when she lost the Innocence on her last mission, but now this boy brought back almost everything she hated about her life. As much as she would prefer watching, she couldn't let Kanda kill him...yet. She needed her answers first.

Activating her own Innocence, Katsu jumped into the fight. The second her feet touched the ground, her eyes met the boys briefly before spinning around and blocking Kanda's attack her bandaged arm. She watched, eye twitching as her bandage was cut away, revealing her blackened skin. "You owe me a new bandage."

Kanda scoffed. "Get your own. They would be fine if you hadn't gotten in the way."

"You can't kill him. He's obviously an Exorcist. Did you take the millisecond needed to look at his arm? That's Innocence embedded in his hand."

"It's true, my Master even sent a letter addressed to Komui," the boy piped up, hands up in the air, after having transformed his arm back to normal.

Katsu sweat dropped as Kanda turned around to yell at the golem that had been keeping a close eye on the fight. "Komui!"

"This might take a while," Katsu muttered, keeping her arm raised. Using her raised arm, she twisted her body under Kanda's arm, pulling into a hold that forced his arm to release the sword. She bent down and picked up the blade in the same swift movement.

Kanda turned on her glaring.

Katsu raised her hand, shaking her finger at him. "I can't give you the chance of killing him."

"I wasn't the one who returned in a murderous mood."

Katsu huffed, "I have self-control."

Kanda's brow twitched. "So do I."

She raised her eyebrow at him. "I do recall you threatening multiple people with Mugen on a daily basis. Especially Lavi."

"The Baka Usagi deserves it."

Katsu's head tilted in thought, "That may be true. He can get rather annoying." At the sound of shuffling, Katsu's attention was once again brought back to her silver haired look-a-like. He was staring at the two of them awkwardly, looking like he was wanting to say something, but unsure what to say. With the way that his eyes kept reverting back to her, Katsu assumed he was just as curious about her as she was of him. That or he was freaked out by her appearance.

Katsu wouldn't blame him. She knew she looked daunting. Hell, she practically blended in with the darkness around them, aside from her silver eyes and hair. The joys of her Innocence, making her look like the ninja she was in everything but name.

Realizing that the conversation in front of him had stopped, the boy walked up to them, smiling nervously. "Hi, I'm Allen Walker." He stuck out right hand for a hand shake.

Katsu stared down at it expressionlessly, as she replied more out of manners than actual interest. "Katsu."

With a small frown, Allen retracted his hand, lifting it to rub the back of his head nervously.

When his hand was out of her sight, Katsu's eyes rose back to look in Allen's. Silver met silver in a silent show down. Allen's gaze remained innocent, curious while Katsu's was accusing, and scornful.

There was a crackle from the golem behind her. Katsu quickly recognized Reever's voice. "We've got the letter; let him in."

The gate rumbled as they opened, but they didn't silence the voice that was still audible through the golem. "It's a good thing Katsu stopped Kanda from killing our newest recruit."

Katsu's eye twitched. Komui was going to be one of the people that drove her up the wall. "Maybe if we had a supervisor that was organized and didn't have an office that looked like it housed a horde of Akuma, mistakes like this wouldn't happen."

The faint, "I'm going to get more coffee," was heard from Komui in response.

"Guys, get in here before I decide to close the doors." Three heads to look at Lenalee as she pointed inside the door.

Wordlessly, Katsu handed Mugen back to Kanda before making her way through the door, deactivating her Innocence. Footsteps shadowed hers, indicating Kanda and Allen were following close behind. Once the four of them were safely in the door, it closed with a slow rumble.

The moment of silence that followed was soon broken by Allen who extended his hand to Kanda. "Kanda, that's your name right? Nice to meet you."

Kanda gave Allen's hand a look similar to the one he received from Katsu before turning away from the boy. "Che, who the hell would want to shake hands with a cursed person?" He quickly walked off.

Katsu's hand unconsciously gripped at her chest as she felt the tickle of emotion again. Offense and hurt managed to make their presence known. Eyes narrowing, she glanced over at Allen again. Those two emotions clear as day on his face as he watched Kanda stalk off. Was he doing that willingly? Was he forcibly pushing his emotions to her? Katsu shook her head. That was illogical. The boy had no reason to force such feelings on a person he didn't know. For some reason, this annoyed Katsu further.

Lenalee walked up beside him, offering a reassuring smile. "Don't mind him, he's probably still cranky over his last mission."

Katsu snorted. "He doesn't have a reason to be cranky. There was no Innocence in that town."

Lenalee looked over to Katsu sympathetically. "It's not your fault, Katsu."

Katsu glared, crossing her arms. "Yes it was. There was Innocence present and I let the Akuma run off with it. It was most definitely my fault."

Lenalee silently sighed. "Do you want to go train or get a meal to take your mind off it? I'm sure I can show Allen around on my own."

Katsu stubbornly shook her head. "No. I have something I need to ask your brother about anyway. The sooner I can get this off my chest the better." Her eyes flickered to Allen again, her right hand clenching around the jacket covering her chest, and her left twitched painfully.

Lenalee noticed. Her eyes locked onto Katsu's twitching limb, then to the one she had seen Allen got injured on the monitor. Her eyes widened a fraction as she nodded. "Perhaps we should go straight to Komui before the grand tour."

Allen looked quizzically between the two female Exorcists as they led him through the halls of the Black Order.

Komui was there to greet them at the entrance to the science wing. With a large smile and open arms, he greeted Allen. "Hello, Allen Walker! I am Komui Lee, the Scientific Group Supervisor." He motioned for the trio to follow him as he started through the science division, sipping at his coffee. "I apologize for the little misunderstanding earlier. We are in the process of reorganizing and updating our security systems."

Katsu snorted, rolling her eyes as she kept a few steps behind them. Her confident walk faltered however, when they reached one of Komui's small labs. A shiver passed through her, as unwanted memories of when she got her Innocence repaired flashed through her mind. Allen noticed, looking at her from the corner of his eye, his head tilting to the side as he watched her.

Her jaw set, and she stepped into the room with a forced air of confidence, taking Allen's glance as a challenge she was not willing to back down from. Both of their attentions was focused back on Komui when he spoke again.

"You may have a seat, Allen. You too Katsu." With a nod, Katsu reluctantly took her place in the second chair. Komui stood on the other side of the table. "Can you both put your left arms on the table please?"

Allen complied quickly, with Katsu a few seconds behind. She glared down at her hand, as it shook while resting against the table. She clenched her fist in an attempt to stop the quivering. All that managed to accomplish was the hint of pain to shoot up her arm. Katsu's lip curled.

Komui watched Katsu struggled with a gleam in his eye that was common in that of a interested scientist. His eyes flashed between the two deformed arms on the table before him. While Katsu's resembled that of a work of art, with the Innocence wrapping around her forearm and hand in black swirls, Allen's was an unevenly textured, a deep blood red. It was fascinating to Komui, to see the similarities and the differences between the two Innocence, much like their accommodators.

Komui moved over to Allen's arm, lifting it slightly so he could get a better view. He inspected the wounds, recognizing the work of Kanda's swordsman ship, even if he hadn't seen it in action. "It seems that your nerve cords are damaged. I'm surprised that it doesn't seem to be effecting your arm." Komui's eyes flickered over to Katsu twitching limb before focusing on Allen's arm again. He prodded against the wound, "Does this hurt?"

Allen shook his head, the same time Katsu grunted. Her arm slammed against the table at the force of the twitch. "Yes," she hissed.

Komui gently place Allen's arm against the table again as he turned to Katsu. Their eyes met and Katsu nodded, jaw clenched as she answered the silent question that passed between them.

"Lenalee, get me some needles. I think I'm going to need to take some blood." Komui said, looking up towards his sister.

Allen paled and Katsu tensed.

"Why the hell are you going to do that? That has nothing to do with Allen's injury." Katsu demanded. She really didn't want to deal with needles unnecessarily.

"It will answer the question we have all been wondering. I have my theories of course, but I'd much prefer having the proof before my eyes. While I wait for the results, I will fix Allen's anti-akuma weapon, then we can take him to visit Hevlaska." Komui took the needles Lenalee handed over to him.

Katsu had the urge to activate her Innocence, that way the needle would never pierce her skin. But she knew how stubborn Komui could get. He'd most likely find a way to put her in a state of tranquillity, forcing her to deactivate. That would only make the process more painful. She settled with turning her head the other way, refusing to see the point pick her skin. She was glad she couldn't even feel it over the slight pain the uncontrollable twitching in her left hand caused.

This left her staring at Allen. She didn't say anything as their eyes met, a frown pulling at the corner of her mouth. Despite the unexplainable anger that coursed through her, she kept getting caught by the innocent look in his eyes. Katsu couldn't stand it. It reminded her of when she was younger, after she had experienced great tragedy, yet still a naïve child. It was sad really.

Komui soon pulled the needle from her arm, placing a cap over the tip. He picked up the second needle and made his way over to Allen. Their gaze broke and Katsu focused on Lenalee who was standing to her left at the other side of the table. She handed Katsu another roll of bandages to cover her arms. Katsu smiled gratefully at Lenalee as she took them, expertly wrapping them around her arm, hand and fingers.

By the time she was done, Komui had finished with his samples and was preparing his gear to fix Allen's anti-akuma weapon.

"Use a lot of anesthesia, would you?" Katsu asked, standing up. She went through that pain once and she was unwilling to go through with it again.

Komui looked up from his work long enough to nod at Katsu.

Satisfied, Katsu left the room with Lenalee. It was best not to be present for the procedure that was the fixing of a parasite anti-akuma weapon.

A while later, Allen stumbled out of the room, his arm in a sling. He leaned heavily against the wall as he tried to center himself.

Lenalee raised her eyebrow at her brother who was making his own way out of the lab. "I thought you were going to try your best to not traumatize the new recruits."

"I warned him not to look." Komui stated, as if that was all the justification he needed.

Katsu snorted, crossing her arms. "You probably only gave him a five second warning before beginning too, didn't you?" Komui opened his mouth to defend himself, but Katsu cut him off. "Don't bother. Let's just get this over with so I can get some rest."

"I told you, you didn't have to come," Lenalee said.

Komui shook his head, "I think it would be best for Katsu to visit Hevlaska with Allen. I'd like her opinion on this situation."

Katsu motioned for Komui to lead the way.

Allen was still unsteady on his feet by the time the quartet was on the elevator down to Hevlaska. He had opted to sitting on the floor to gain his bearings, opposed to standing.

Katsu watched him with contempt. Every time her eyes caught sight of her hair-hell it was even the same length-and her eyes, she couldn't help the anger that would flush through her. She couldn't place it, nor did she understand it, but with everything that just so happened to relate back to Allen, Katsu found that it was easy to blame him. Katsu liked easy. It was hard to find something in her life that was easy.

Allen groaned from his spot on the ground. Lenalee crouched down, attempting to sooth the poor boy.

"You should be proud," Komui consoled. "You have one of the rarest types of Innocence, yet the strongest in activating."

Allen looked up, one eye brow raised. "Innocence? You keep using that word, but I don't understand it."

"It's what all our anti-akuma weapons are made of. The only substance that can kill Akuma," Katsu stated sharply, as if the answer was obvious.

Allen blinked at her, refusing get worked up over another display of coldness, while Lenalee glared.

"Why don't you show us your power?" Komui suggested, sensing the tension rising between the two look-a-likes.

Once again Allen blinked silently, irritation towards Katsu flickering beneath the surface. While staring at Komui, multiple tentacle like hands swerved up from behind him, grasping him gently. They tugged him backwards and upwards into the air. Immediately Allen struggled, the customary response to being picked up without warning by Hevlaska. Her arms cocooned Allen's left arm, pulling it gently from the sling it had hung in.

The tendons in Allen's neck strained as he struggled against Hevlaska's hold.

Katsu, feeling the strain within her own left arm, spoke to Allen, picking at her nails while she was at it. "It's pointless to fight. She isn't trying to harm you."

Lenalee glanced at Katsu, disbelieving. "You reacted much harsher than Allen. Even when we reassured you with those same words."

Katsu's brow twitched, as a shadow fell over her features. She looked away with her mouth firmly shut. Instead she focused back on the struggling Allen, with a slight glare. The pain in her arm was making itself instantly known through the anesthesia. Even as Komui reminded Allen that the anesthesia wasn't going to let him activate, the determination was clear as day in his eyes. Perhaps it had something to do with the detached nervousness she felt. The emotion distant and muted compared to the others, tickling at her chest.

None of that mattered, however when the shocking pain jolted through her arm. Katsu gasped, the muscles tensing in protest, cutting off any other possible movement. Her eyes were not focused on her own arm, despite the pain. She was much more interested in the disfigured look of Allen's and the complete lack of pain in his face. How was it fair that he felt none of the pain?

Even still, Hevlaska calmed him, causing Allen's body to go limp in her arms. "Do not move your arm. You're nerves are paralyzed. It is dangerous when you are not a hundred percent healed." She bent her head down to Allen's forehead to measure his synchronization rate. "Eighty-three percent," she declared after a moment.

Allen slowly came to, with the sluggish question, "What's eighty-three percent?"

"It is your synchronization rate. The lower the percentage, the more dangerous it is for an Exorcist to activate their Innocence." Hevlaska placed Allen back onto the elevator before turning to Katsu. "I apologize for any discomfort you many have felt during the test."

Katsu shook her head, looking away from Hevlaska. "It's nothing abnormal." Even if she hated it with all her heart.

Despite focusing her attention elsewhere, Katsu could still feel Hevlaska's thoughtful stare on her back.

"May I have another look at your Innocence?"

The question caused Katsu to look up at Hevlaska in shock. "Why would you need another look? Nothing has changed, as far as I'm aware."

One of Hevlaska's hands reached towards her mouth, as if she were in deep thought. "I can feel a difference," she whispered. "It was static before, sometimes strong, sometimes weak. Now, it's flowing in one strong wave."

Katsu couldn't make her mouth work through her confusion. She simply managed a small nod. If Hevlaska having another look at her Innocence would help her clarify what she just told Katsu, Katsu was more than willing to let her.

When Hevlaska's arms reached out and grabbed her, Katsu fought against her body's instinct to fight her off. Instead, she tried to remain calm. Experience told her the process went quicker with less unpleasantness if she cooperated.

Hevlaska's forehead touched hers, and Katsu closed her eyes as she felt the calming presence of Hevlaska's mind reaching into her own. After a moment, Hevlaska spoke. "Your synchronization rate is steadily increasing."

"What are you saying, Hevlaska?" Komui asked, his own brain scrambling to connect the dots.

"Each Innocence has its own wave length; a code you could call it. Katsu's Innocence's code resembles Allen's greatly. It is as if they are connected and sharing power and this connection is causing Katsu's synchronization rate to slowly increase," Hevlaska explained.

"Shouldn't Allen's synchronization rate be increasing steadily too?"

"I do not know the answer to that. What I do know is that Allen will be the Destroyer of Time and Katsu the Savior."

There was a moment of utter silence before the words managed to sink themselves into Katsu's brain, striking a cord. "What the hell are you talking about? Why didn't you tell us this earlier?"

"I apologize, I appear to have angered you." Hevlaska gently put Katsu back on the elevator. "I could not have predicted this sooner, because the two destinies are intertwined. One cannot happen without the other."

Katsu huffed, wanting to argue further but Komui cut her off. "Thank you, for this information."

Hevlaska nodded, "Until next time."

With those parting words, the elevator began its ascent. "Isn't that wonderful? Hevlaska's fortune telling is correct most of the time."

The swelling anger within Katsu was the only available warning before Allen spun towards Komui, fist raised, aiming to make contact. Thankfully to years of avoiding Kanda's and Katsu's attacks, Komui managed to throw his clipboard in front of his face for protection. Katsu snorted at his lack of skill when Allen's fist hit the clipboard. If she had been desperate enough to hit Komui, she would have thrown her other arm lower, to catch him in the gut. Allen however obviously didn't think of this through his anger.

"Let me hit you please," Allen ground out through clenched teeth.

"Don't be so polite about it, just hit him." Katsu instructed. Who the hell asks someone to let them hit them?

Allen didn't follow her advice, allowing Komui the time to talk.

"I know that must have been a little bit scary, but it is protocol. Every new Exorcist has to be inspected by Hevlaska." Komui hesitantly lowered his clipboard when he felt confident Allen was about to swing another one.

"It would have been nice to have a little bit of forewarning." A tick mark was clearly making itself known on Allen's forehead. "Besides, what is with this whole Innocence thing? I understand it's what makes our anti-akuma weapons, but obviously there appears to be more to it than that."

Komui then took the rest of the elevator ride to explain to Allen the history of the Black Order and Innocence. By the time they reached the desired floor, Katsu was ready to run off to her room, fall asleep and forget that this whole day even happened. Forget that Allen Walker even became a part of her life. That couldn't happen just yet though. She still needed-wanted-to find out the reason behind her and Allen's similarities. Hopefully knowing that information would be one thing out of her mind.

So when Komui made no move to lead them back to the Science Division, Katsu decided to kindly remind him. "Your experiment should be ready now, right? I need to get to sleep."

The light bulb went off in Komui's head. "Ah, yes of course! How could I forget? Right this way." The four of them quickly made their way back to the small lab room. Once inside, Komui scurried ahead to the counter, looking through the information.

With a nervous smile stretching over his lips, his eyes glancing between Allen and Katsu warily, he announced, "You're twins."

Any hope Katsu had of being able to forget about some things if she knew the reason she and Allen looked similar quickly became nothing more than a dream. In seconds, the silver haired boy went from being a complete stranger to family. Biological family.

"What?" Katsu hissed. Perhaps she heard him wrong. There was no way that Allen was her twin brother. She couldn't have a sibling. She had been told she had been found on the streets. …Maybe it was because their parents didn't want her. How could she blame them? It must have been disgusting to have a child with a woven black cross on her cheek and black swirls on her arms. Did they find that more repulsive than Allen's arm then?

Komui's eyes were soft, as if he didn't want to startle a wild animal. "You are twins."

Katsu's eyes hardened. That had to be the answer. They didn't want her. An arm was easy to hide and proclaim to normal, but her cross…that was abnormal. The green eyed monster crept itself into Katsu's heart, feasting on her growing anger and resentment. It was one thing for Allen to force his feelings onto her, and another for him to have lived happily with their parents.

Katsu's left arm slammed against the table beside her. The bang resonated throughout the room, startling the other occupants. Katsu's jaw clenched and eyes narrowed when Allen's eyes fell on her. He had all she wanted, and was forcing the little hardships he felt onto her. Just looking into his eyes disgusted her.

Without a word, she stormed out the door, in a worse mood than she had returned to the Order with. Oh how she wanted to hit something now. Preferably Allen's face, cause him even some of the pain she had endured during the years. The only thing holding her back from doing just that was the knowledge that she would only end up hurting herself.

She settled with storming into her room and sleeping off her anger. Maybe her anger would help keep those unwanted dream monsters away.

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