Infinite Stratos: Correction and Assimilation

A/N: Finally an update for this story, it has been so long since I wrote an update for this one. Mainly because of me focusing on my main story, Truth Be Told, I have forgotten to write for this story. But now, after thinking about it what to do with what I left off in the 2nd chapter, I finally concocted a perfect scenario to continue the story with. XD

This is chapter is going to be mainly a battle… between the two onee-sans everyone knows about.

Disclaimer: I don't own Infinite Stratos (except my plot and OCs), it belongs to Izuru Yumizuru.

Chapter 3: Battling the Mistake

The metallic sounds of two Katanas clashing echoed loudly inside the Orimura household as the two Chifuyus furiously swung at each other.

The deadly dance brought nothing but absolute destruction to anything that steered near, the furniture, the walls, floors and the roof of the first floor all of them weren't spared from the Katanas that are being held by the two women.

"That's pretty good… even without fighting for a long time; you kept your edge at its sharpest."

"Thanks for the compliment you fake."

Chifuyu turned her sword sideways and swung hard horizontally enough that a powerful gust was created, sweeping the debris in the destroyed living and breaking the glass doors and windows.

That powerful attack though did not at all affect the other Chifuyu; she merely smiled sinisterly at the other her and dusted off her shoulder.

"Fake? Now that's rude. For your information, I'm not a fake I'm just as real as you are. The correct term to refer to me is invader… not fake."

"What the hell does that mean?"

"It means what it means… I'm an invader and I'm here to take what's rightfully mine. So don't get in my way." The smile of the other Chifuyu quickly transformed into a depraved grin, not even intending to hide what corrupted feelings are oozing from her twisted gaze. This actually rattles Chifuyu, never has she seen an expression full of corruption and desperation. It was like the other her was trying her best to reach for something but keep on failing. Chifuyu couldn't fathom what caused her other self to be this insane but one thing that she is sure about is that she won't let this twisted facsimile get what she wants.

(I must end her right here!)

Chifuyu's instincts called for a quick disposal of her enemy, she changed her stance fast into Iaido and jumped towards her identical opponent while spinning in mid-air.

"Oh?"

The other Chifuyu grinned confidently, she leaped also meeting Chifuyu in a mid-air confrontation.

The former swung first but the latter however was ready with the block, however it wasn't much of a block because before the swing of the other Chifuyu drew close, Chifuyu was already gone and suddenly appeared like a ghost behind her doppelganger.

"Ougi… Taki Tatsu."

Chifuyu strength all poured into her arms which made possible for her to draw it with speeds far exceeding even her fastest swinging speed. A sword slash that cannot be beaten it terms of speed and power that is builds through its impossible speed.

But her opponent knew of it as well, she knew of it too well.

"!"

Insisted of slicing off flesh, Chifuyu's blade instead was met by a katana positioned on the path of her swing in more than half of a moment. Because of its speed, Chifuyu was sure that her attack would go through any form of blocks and hit straight into the body of her opponent, however here she is looking at the result that she didn't think was possible.

"Taki Tatsu… ah yes… we used this technique in the 1st Mondo Grosso… this technique goes so well with [Kurazakura] as well." The other Chifuyu looked back at Chifuyu with a grin as they remained suspended in mid-air for a while now when in truth it's just been seconds.

"Is that so… then I guess you know about what follows."

The fake lost her smile.

"Ougi… Saigo Sasayaki." Chifuyu suddenly dropped down to the floor and kicked off from the floor with so much force that it was left cratered. Not even a second has passed but Chifuyu already closed the distance between her and her enemy who is still in mid-air.

"Damn it!" The fake grinned, knowing that this time the speed of this next swing will truly be unblockable, she knows the technique of course.

The neighborhood of the Orimura residence was disturbed as an explosion blew off from the roof of the house and every window from the first and second floor of the house was blown off. Many of the neighbors went out of the houses and peered on their windows and looked at the now smoking and damaged Orimura residence.

"Call the authorities… something is happening on the house of the Orimura siblings."

Fearing of an explosion caused by gas leak the neighbors called the authorities in order to prevent it from getting any worse; little did they know that what truly caused it was far from what they are imagining.

In the first floor, Chifuyu landed on the floor after landing her second attack one that has more speed and power to it. The attack was powerful enough to cause a powerful burst of force escaping from every window and opening in the house.

That technique was used as well by her during the Mondo Grosso, by forcefully shifting all her weight downwards, Chifuyu quickly lands on the ground and kicks off with all her strength building up speed and power at the same time all culminating in a blindingly fast arcing swing of her sword.

"… Damn…"

But even though knowing that her attack landed, Chifuyu's expression was far from being one that belonged to a victorious fighter because she knew her opponent is still not defeated.

"!"

Another explosion was heard, it was the sound of a concrete being broken and then it was followed by another. The wall on the far side of the living room, directly in front of Chifuyu was blown to bits but no one came out of the smoke.

"Saigo Sasayaki…"

By the time Chifuyu heard the warning, it was already too late.

The other Chifuyu performed a similar technique to what Chifuyu did earlier, only this time the stepping ground is the wall.

Another powerful explosion rocked the Orimura house, this time blowing a hole on the wall of the first floor of the house.

Chifuyu was thrown out of the house and finally hits an electrical post on other side of the street. Chifuyu winced in pain when the pain of her wound, a slash mark going on her stomach, started to gnaw on her senses. Blood began pouring, soaking her uniform.

"She knows that as well… how the hell was she able to know my own techniques…"

Chifuyu gathered her strength again, returning her grip on her katana and there she slowly stood up. The long wound on her abdomen didn't go deep that it would be fatal but still she received a wound that would cause bleeding but despite that Chifuyu managed to stand up as if the wound she received was comparable to a scratch.

"Amazing… seeing sturdiness in you that is similar to my own is pretty amusing to watch." The other Chifuyu is now on top of the post Chifuyu had hit, staring down at the latter with her depraved stare.

"What are you?" Chifuyu didn't even bother with anything else and went straight to asking the question.

The other her merely laughed off the question, as if finding it very comical.

"Come on… don't tell me I'm slow in this dimension. You should've clue of who I maybe be by now." The other Chifuyu jumped down the post, landing right in front of Chifuyu.

Both women glared at each other for a few moments, not moving just starting at each other with nothing but violent intentions lacing their eyes.

"Do I really need to spell it out for you… I thought that just looking at me would be enough…" The other Chifuyu didn't hesitate and swung her katana right at Chifuyu, intending to behead the latter.

The swing was fast, extremely fast but still Chifuyu jumped away moments before it cut her.

"I already have a clue on what you are… but I just need a confirmation." Chifuyu snarled at her clone.

The latter grew quiet for a moment and then started laughing in maniacal way.

"Ahahahahahahahahahaha! Well… if you want to know the truth… I can tell you one important part of it…" The other Chifuyu grinned even wider, this time her malign intentions are openly showing making her look very terrifying.

"I am you from another dimension and I came here to take my brother."

Now speaking like a possessed person, the other Chifuyu lets out a bellow so eerie it made Chifuyu cringe and then made her even angrier than before.

The mention of Ichika being the target of her twisted dimensional twin, sparked protectiveness and anger that Chifuyu hasn't felt before. In her mind, there is nothing more that she wants than to murder this psychopath in front of her.

The warmth in her eyes died down, leaving nothing more but a linger cold of brutality.

"That's it. Now I can't even see the difference is between us." The other Chifuyu laughed, amused of the anger the other her was showing.

"Silence."

Without warning Chifuyu slashes her enemy from the shoulders down to her left side.

"Eh?" The wound was indeed damaging and painful but the other Chifuyu reacted to it with a grin and then she retaliates with strike to Chifuyu's wound in her stomach by using the butt of her sword.

Chifuyu didn't take a step back instead and goes in again and unleashes a flurry of sword stabs against her enemy. Of course the other Chifuyu retaliated with the same technique, matching the furious stabs Chifuyu was throwing at her.

The two thrust their sword at each other with tremendous speed, creating wind surges around them as if they were surrounded by a tornado. The deafening sounds of two swords filled the air like a continuous roar of thunder and lastly the sparks of the grinding of the blades served as the icing to make the violent and bloody scene between the two identical looking women all the more gruesome and hypnotic to watch at the same time.

"Ahahahahaha!"

The other Chifuyu laughed at the deadlock between her and Chifuyu dragged on. Their katanas are beginning to graze and stab each other the longer their deadlock went on.

Their cheeks, sides, arms, shoulders, legs, all were started to get grazed as the blade from the other stabs through and grazes the other's body. Their blood began to stain the concrete, threatening to paint it entirely red.

Suddenly, an abrupt end to the deadlock of their swords happened, the two Chifuyu's jumped away from each now full of slits and slash marks all over their blood, dripping blood.

"Do you want to kill me Chifuyu? Foolish… you think you know what's best for Ichika? Do you? You know nothing? That's why I'm taking him away from you… you careless and failure as a big sister!"

The other Chifuyu roared in anger, she quickly lunged against Chifuyu with swung at her hard. Chifuyu blocked it but she was out powered as the other Chifuyu pushed her backward, driving her towards the open street but half way to it, the other Chifuyu pushed off Chifuyu disrupting her guard and proceeded to knock her away with one powerful sword thrust.

"Guhhh!" Chifuyu was sent tumbling towards road, she managed to stop herself from rolling on the ground but then she received a surprise attack in the form of katana going through her right shoulder.

"What's the matter… you suddenly dropped your guard!" The fake lifted Chifuyu while she is still impaled on her sword and flung her to the on the far side of the intersection, but Chifuyu was flung with so much power that she went through the solid wall and went through a house. Luckily the house was empty of its inhabitants, making the risk of any casualties small.

"That one hurt." Getting up from the wrecked living where she crashed in. The puncture on her shoulder let loose a lot of her blood, however it didn't do much to deter Chifuyu from moving, instead she took it without letting an ounce of agony to taint her expression. The same cold and uncaring face remained unchanged.

"!"

An ominous feeling struck Chifuyu, she quickly jumped away just in time to avoid the dive attack from her doppelganger from above. Like a meteor, the other Chifuyu blasted through the roof with ease and smashed down her katana with such force it destroyed the floor and blasted the furniture to bits.

"As expected… fighting myself is the only fun fight I can have!" The other Chifuyu blasted out of the smoke, lunging towards the real one.

"Guh!" Steeling her resolve, Chifuyu grabbed her katana's hilt with both hands, preparing herself to take the attack of her enemy head on.

The block was successful, Chifuyu stopped the attack of her enemy but in turn she was forced down to her knees.

"Oh? What's this… you can do better that this… I would know because we're the same!" The other Chifuyu pressed down her sword.

That snuffed out whatever remained of Chifuyu's cool, she stood up and deflected the katana of her opponent and then quickly spun to deliver a clear slash to the stomach of her opponent. But it was not to be…

The shrill metallic sounds of blades colliding filled the air as Chifuyu strike was promptly blocked the sword with her scabbard.

"You should've expected that."

The fake grinned, but also Chifuyu did so as well.

"I did… question is… did you expect this." Chifuyu's own scabbard was sent flying to the side of her enemy, sending the latter flying to the wall going through it and crashing to the kitchen.

Chifuyu then followed it up by dashing towards the fake, with her scabbard and katana thrust in front of her, crossed like the scissor.

"Your face is irritating; it needs to cut severed from your shoulders." Like a ghost, hovering towards her victim Chifuyu seemed like he glided on the floor towards the other Chifuyu who is still pinned to the wall.

Her aim is the neck and she wants to scissor it off her with katana and her scabbard, however a sword went in between the katana and scabbard.

"Eh? Are you really trying to kill me with that old technique? Honestly, that was when we we're still in middleschool. Grow up." The fake pushed Chifuyu off and then dashed forward then went to duck, finding a clear spot to stab Chifuyu's stomach.

But to the surprise of the other Chifuyu, the real one suddenly vanished like a specter as the sword stabbed forward.

"!"

The fake turned her eyes to the left and she saw Chifuyu there, it was already too late to do anything. The sharp pain of a blade slashing her side was felt by the other Chifuyu.

The attack sent her out of the house by blowing through the walls of the walls and into the street. The wound on her side was deep and reached her internal organs.

She touched her sides and found her hand red with her own blood but this didn't even stop her at all, she merely licked the blood with interest.

"This pain doesn't even compare to losing Ichika… therefore I don't feel anything from it." The fake laughed off the pain she is feeling and readied herself to lunge back into the house but before she could, the police that have been called to respond to the battle she and Chifuyu caused arrived and they all hurriedly went out of their vehicles and aimed their firearms at her.

"Stop right there! Hands up or we'll shoot."

The fake Chifuyu stood in the middle of the street surrounded on both sides by the all in all 25 policemen all armed with automatic weapons.

Thinking about the situation, the other Chifuyu took advantage of the cover of the night to quickly activate the visor of her clothes. Since she is wearing a battle suit that comes with a visor, she quickly used it to protect her identity.

(If these troublesome police saw my face, they would definitely mark the Chifuyu here as the suspect or at least be suspicious of her… I may be stupid but I have to be the bad guy here.)

With the plan she hatched, the fake suddenly turned her gaze towards the police.

"Drop your weapon!" One of the police officers screamed as he placed a finger on the trigger. But before he could pull the trigger or say anything else a blade stabbed through his neck.

"You're noisy." The robotic voice of the other Chifuyu terrified the other police offers who are shocked of how fast one of them was dispatched.

"Now who's next?"

The taunt from the other Chifuyu caused the rest of the petrified police officers to go back to reality, they then quickly fired at their masked enemy but they can't hit her. The other Chifuyu nimbly jumped and dashed side to side, avoiding all bullets coming her way. All they did was waste bullets as one by one the other Chifuyu slaughtered them with ease.

In just a span of a minute the other Chifuyu dispatched 12 police officers, leaving only 13 more on the other side of the street to take care of.

"Kill her!" The remaining police officers opened fire without hesitation, but the raining of bullet did little to deter the death that's coming for them.

To their horror, their attacker suddenly vanished in their sight; they can't locate her as she instantly puffed out of existence like a smoke and unfortunately for them, reappeared above them diving like an eagle that's about to snatch her prey.

A police officer was suddenly cut in half with one swing and then another one; the murderous streak went on without stop. The remaining 13 officers out of the 25 were shrunk down to 2 and they are now awaiting their grim fate as the other Chifuyu approached them slowly with her katana gleaming ominously.

They have already dropped their guns and are now crawling on the ground like wounded prey waiting for their predator to come and bite them on the throat. Despite the certainty of the situation, a moment of salvation came for the two surviving police officers; a leaking LPG tank was thrown right in front of the other Chifuyu.

"Oh?"

The leak of the tank suddenly caught flames and then promptly exploded. The two police officers were thrown for short distance, but still they both managed to escape even though they are shaken by their close proximity to the explosion.

As the two police officers survived the explosion, the other Chifuyu who is the closest to it was thrown 10 meters back and hits the top of the police vehicle but never got burned. Her battle suit blotted out most of the force and the flames of the LPG that exploded on her face earlier. Her visor was the only one that's damaged; a crack riddled its left side completely, so she removed it and crushed it thoroughly.

"!"

She quickly jumped away from the car when she sensed danger was coming at her from above.

Chifuyu came crashing down and sliced the car in half.

"Missed me." The other Chifuyu is already far away from the car when Chifuyu sliced it in half, she then threw her katana right at the engine of the sliced police car.

The blade pierced the fuel tank, sparks spewed the flammable fuel inside the tank and it result in an even bigger explosion.

"Tch!" Chifuyu quickly jumped away from the car, barely managed to get out of the explosion's radius and unlike the other Chifuyu, she didn't have the battle suit to protect her from fiery detonations. So now, even though Chifuyu managed to avoid being caught by the explosion, she sustained burns on her hands and neck, the left sleeve of her uniform was scorched.

"!"

Chifuyu didn't have a second to rest as the fake quickly lunged at her, engaging her again in a furious blade dance.

The bloody duel between the two women dragged on, the two quickly covered ground around the suburban area, destroying anything that was unfortunate to have steer too close to their dance. The fight is even but without warning, the other Chifuyu suddenly gained the upper hand. She smashed her katana at Chifuyu, the latter managed to block the powerful swing but she was pushed all the way towards another wall.

"Got you!" The fake pinned Chifuyu on the wall with such force that it began to crack and hollow.

"You seem to have more wounds than I do. What's the matter, getting tired?" The other Chifuyu taunted as she continued to push Chifuyu to the wall.

"No, I'm just getting started!"

Chifuyu suddenly reversed the situation, she stormed out of her cornered position and this time pressed the other Chifuyu to the wall.

"What I'm really getting tired of is your face… so let me rip that off for you." Chifuyu snarled in anger and pushed the other Chifuyu right through the wall. She then leaped up, planning to stab her enemy who is on the ground.

The other Chifuyu however rolled away, avoiding the strike and then lunges forward to deliver a stab right on Chifuyu's face. Chifuyu shifted her head to the right avoiding the fatal stab but sudden the sword was retracted and it grazed the side of Chifuyu's face.

"Tch!" Chifuyu retaliates with a lunge and then draws her sword quickly, aimed at the body of her imposter but it was blocked but it still resulted to the other Chifuyu being thrown through the wall not far behind her.

Chifuyu pursued her opponent relentlessly.

The skirmish between the two continued on with the neighborhood suffering the casualties due to the furious battle between the two women.

Soon more and more police came in response to the widening destruction in the area but none of them were able to catch the two who are responsible.

As the commotion in the city began to get bigger and bigger, the news of it reaches the media and inevitably it lead to Ichika in the IS academy seeing it.

Inside his room, Ichika is already packing his things so that he can go home and meet his sister. The wall-mounted TV in his room was on and there the news about what destruction in the area where his house was in came on in an emergence broadcast.

Ichika who zipped his bag closed stopped when he saw the destruction in the community where he lived in. The destroyed houses were showed, the police and the statements of the scared people who had been in the community.

"Chifuyu-nee!" Ichika quickly grabbed his cellphone on his bed and dialed his sister's number but no answer. He repeated the call several times but still no answer.

"I have to go there!" Ichika didn't even grab his bag, he just ran out of the room frantically. In his mind, Ichika only wanted to see his sister safe and sound. Ichika ignored the girls who greeted and called out for him, he just ran towards the rail car station that is quite far from the dorms but it didn't bother Ichika at all, he just ran.

Ichika arrived in the rail car station and quickly boarded the one that was about to leave for the city.

"Chifuyu-nee… answer." Ichika tried to call again, hopefully now his big sister would answer but still no answer came. The failure to contact his sister only served to agitate Ichika even more.

Normally he wouldn't be this worried for his big sister; he knows that no one would be able to defeat her. She is the strongest woman in the world. But right now a strange fear has challenged that confidence, something Ichika can't point out compelled him to go and find his sister or else something might happen to her.

The ride on the rail car is quite quick since it only takes minutes before it arrives in the city but to Ichika the ride seemed to have been the longest one he took. It was like the distance seems to lengthen as the rail car moved forward.

If the rail car took a second later in arriving into the other end of the station, Ichika would've lost his patience and blasted through the rail car with [Byakushiki] and fly to the city. Luckily the rail car arrived in the other end and Ichika quickly stormed out towards the city.

Somewhere in the city, the two Chifuyu went on with their vicious fight, now both in the city.

"Just die already!" The other Chifuyu again managed to successfully stab Chifuyu on her stomach but the latter retaliated by stabbing her own sword at her enemy's stomach.

"I could say the same to you." Chifuyu growled at the other Chifuyu.

The two smashed their foreheads together and glared at each other so intensely with blades stabbed into their stomach. The pain of their stomachs being stabbed didn't even register in their minds, all that they could feel right now is the anger and the desire to destroy each other.

Their blood ran down from their wounds as they both stabbed their swords deeper into each other. The standoff went on for a few seconds before the two suddenly drew the swords from each other's body, spilling blood on the ground and then again swung at each other.

Both their swords met, creating a very loud sound of metal colliding, sparks flew like from the meeting of the two blades. The two however pushed the sword towards each other, wanting again the deliver a hopeful final blow but instead what happened is something far more than that.

Chifuyu stab managed to puncture something in right forearm of the other Chifuyu. An armor plate cover that forearm of the other Chifuyu however Chifuyu's sword was able to go through it and slash something inside it.

The other Chifuyu noticed it as well and was immediately shocked by it and of course Chifuyu did so as well, the expression on the face of her enemy ushered surprise and ominous feeling in her.

"Damn it!"

That was all the other Chifuyu could say when her forearm, where Chifuyu's sword is stabbed began to glow so bright it blinded everything.

What was inside on the forearm armor of the other Chifuyu is the thing that allowed her to come in this dimension, the Intra-dimensional device, the small black box that she got from Tabane.

Untold amounts of energy are inside the said box and now all of that was released into the world.

No one in Tokyo could ignore the blinding light that suddenly blanketed it, it was so bright that it made everything else disappear; Ichika who also saw it couldn't help but turn away and cover his eyes. But inside he knew that whatever it is, he needed to go there because he felt his sister's presence on where the light was originated.

"Chifuyu-nee wait for me…"

While he can't even see anything, Ichika still bravely swore to find Chifuyu.

Soon the light died down, everything returned to normal. The rest of the Tokyo's populace were confused and didn't know what to do, but Ichika he quickly darted towards the direction of the light, to its point of origin.

Ichika ran there without stopping, exhaustion or any other thing for that matter seemed invisible to him, to him there is nothing more important than him seeing his big sister safe and sound. In all honesty though, Ichika doesn't even have one ounce of concrete evidence to believe that his big sister would be there, only his instinct told him that and he readily believe it.

Ichika run through a few blocks before he arrived in place that stopped him in his tracks.

In front of him is an alien place where nothing was present but a crater, a large crater measuring up to a mile in radius and a mile in depth and in its center is a lone woman, unconscious and visibly injured. Upon seeing the woman, Ichika quickly run towards her.

That woman was none other than his big sister, Chifuyu Orimura.

"Chifuyu-nee!" Ichika ran down the crater towards his sister.

Upon arriving on her side, Ichika suddenly lifted her upper body and cradled her.

"Chifuyu-nee… wake up! Please wake up!" Ichika called out to his big sister, hoping that she will open her eyes and give him a smile saying that she is okay.

For a few minutes, Chifuyu didn't responded but after a minute her eyes moved and slowly opened.

"Chifuyu-nee! You're alright!" Ichika hugged his big sister gently.

"I thought I lost you." Ichika almost cried as he expressed his worry, but Chifuyu on the other hand was left clueless as to what happened. She looked around her and there she began to realize it.

"!"

Remembering what happened earlier, Chifuyu suddenly sat up surprising her brother.

(That woman… was she…)

She then made a sly looking smile.

(So she got imprisoned inside the cube huh? Well this is work out for me either way...)

She look at the small black box that's still in her forearm gauntlet and instinctively hid it from Ichika.

"Chifuyu-nee?"

"It's nothing... Ichika, its nothing. It's been a long, long time since we embraced so let's do it now." Chifuyu ignored her brother's concerns and proceeded to give him a tender hug.

A little confused Ichika returned the hug. But in the corner of his mind, he felt a little strange about his sister.

(Chifuyu-nee... she seemed... different today...)

A/N: Okay I've placed the real ending, the earlier one was a bit too confusing for everyone so I just changed it for convenience sake and hope that this clears things. XD