6/30/14: Uhhh I got gender confused, but it's all fixed!

AN: So this is my first Certain Magical Index/Scientific Railgun fic. I got this idea from one of my followers when we were discussing about a fanfic for this franchise. He came up with the idea and I went on from there. Thanks kenegi!

Heads up, I'm not really a master when it comes to japanese honorfics and all that.

I use ellipsis as a timeskip. It could be minutes, hours, days, etc.

The only japanese words I'm gonna use are pretty much like onee, onii, Kami-yan and something similar.

Enjoy!

Prologue: The Defective One

"Please watch over them,"

A scientists in front of me was looking at me with expectancy on agreeing with her. How could I say no? She was the reason I knew all of this knowledge: walking, breathing, talking, and everything a human should know.

The young woman in front of me looked so nonchalant but I knew she does care for them. She was responsible for them and me. No I refuse to use the term us.

I am different.

How should I explain it?

Unlike my so called sisters, she personally saw my creation. From my body's accelerated growth, I was much like the others. However she took over the part where they used that machine to give me all normal human functions. That was my first memory: naked, cold, confused.

"I made you personally as a guardian to them, do you understand?"

"Understood,"

My speech was different from the others. My dialogue was not filled with third person or explanations of actions. I talked like a normal human being.

"I never did gave you a name," she pointed out,

"I don't need one, I'm not even human," I joked,

She seemed to be offended by both of my statements. Calling myself human would be a crime, I am a clone. Whoever the donor was, she was a fool for giving her DNA. I wonder does she know of these experiments? Did she get tricked?

"If it's too much for you," the scientist began, "Just live a normal life,"

"Like I'm gonna last long,"

My lifespan was only a few years. It's an honest statement.

"Misaka is needed at her required destination says Misaka impatiently."

I sighed at the lookalike by my side. She just stood there quietly gazing at the orange sky. Is the sky always orange?

"I thought the sky was supposed to be blue?" I asked,

I should have mentioned; this was the first I was outside. For most of my short life I was in that facility.

"It's dusk right now," the scientist explained, "It will become dark after that and then the first outdoor experiment will begin."

"I see," I nodded,

So it turns blue, orange then dark? What does she mean by dark? As in black skies? Then how would I see?

"Do you see those lamppost?" she pointed at a pole, "They will automatically light up."

I nodded again at her explanation.

"Experiment 8912 is right behind schedule Misaka states with agitation."

She sighed and nodded at my direction.

"Try to convince her to stop if not then it's too bad," the scientist sighed,

She said try. Try is to attempt to accomplish. I have to try to stop the experiment? I thought it was to watch over them, my sisters.

Misaka 8912 was already leaving us.

"Will I ever see you again?" I asked,

She was practically the one that raised me. Unlike the ones left to the other scientists I was given to her. I am grateful for her and my growing conscious is telling me to repay her.

"In all honesty I hope not," she answered,

Reading her body I could she was lying. What was that term when the lie was harmless? White lie. Yes she was lying to me by no means to harm me. She wanted me to live. This woman hopes she could see me again.

"I should go." I stated,

I didn't turn back and it would be months when I see that woman again.

"Take care." were the last words I hear from her in a while,

I quickly caught up to 8912 who was walking at a leisure pace. For someone eager to die she seemed so patient.

"Misaka does not understand you Misaka says as she narrows her eyes in confusion."

I kept my silence and to these other humans it looked like twin sisters walking. However I do not have those Electron Goggles and we wore a uniform of sorts. I recall our experimenters telling us it was a article of clothing for a location for adolescence to learn. It's minimum requirements to enroll was an epser level of 3. That was my problem.

"Defective Misaka is not connected to the Misaka Network, Misaka bluntly states with no regret."

She's right I am not connected to Last Order. I was my own Misaka.

"Then there's the fact your esper level is lower than the other Misakas, Misaka states with no sympathy."

That's right my level is lower than 3 isn't that sad? I honestly could care less but I was trained to be more efficient with makeshift weapons rather than depend on my esper powers. When I was at the lab I was able to discover physical conditions of various espers throughout Academy City. It was seldom to see a few espers who are physical combatants. For example one of the epsers who are close ranged combatants has the power Clairvoyance, an ability to see through objects. She is capable of various takedown moves to quickly end conflict with no serious injuries.

Anyways my esper capabilities are indeed limited. For that the sisters tend to look down on me.

We walked on towards 8912's impending doom.

...

The destination was isolated from the common people. It makes sense since it is nighttime: there will be less people. It was some sort of harbor.

At the distance I could see a young thin man with a smirk.

The strongest esper: Accelerator.

"Is this fight supposed to be more difficult since there are two of you?" he pointed at the two of us,

"Defective Misaka will not participate in this battle, Misaka answers with little care."

"Isn't that a little inhuman calling her defective?" he asked again,

Was it natural to be intimidated by someone with so much power? His ability Accelerator is nearly impossible to defeat. He manipulates the momentum and direction of anything physical. In theory it is impossible to defeat Accelerator.

"I've been assign as an observer for battles I wish to see," I told the strongest esper,

"When you mean defective you mean she talks like a normal human being?" Accelerator raised his eyebrow,

By my side 8912 was putting her goggles on. It was my cue to stand on the sidelines.

"Experiment 8912 will now begin."

Quickly taking out her Toy Maker, the FN F2000, she started to fire away. However Accelerator's ability easily deflected the barrage of bullets with ease. The F2000, a bullpup assault rifle originating from Belgium. It is expensive to produce this variant. It was heavily modified to be more accurate and adaptive to the sister.

If these clones saw themselves as expendable, they should have been given the standard AK-47s. Cheap, and easily reliable, the Russian assault rifle fits these sisters more.

I would personally prefer a Heckler and Koch G36c. A simple reason, it's design allowed it to be a lighter assault rifle. If I could commission one it would be amazing.

"Wow that's the first move?" mocked Accelerator,

His calm facade faded away quickly and now a maniacal grin has formed. It would seem he would toy with 8912's life instead of ending it quickly. 8912 quickly retreated around a corner of storages.

For someone that should die she was running away? I am confused.

"Oh c'mon if that's all you got then this fight will be boring!"

Accelerator was indeed toying with her. Slowly turning around the corner he blocked a quick shot of electricity.

"Your ambush sucks!"

His taunts were become more vulgar and unhinged. He will tear her apart. So this is my job? Watching all these lookalikes to die?

8912 tried to run away but Accelerator stomped the ground. Using his powers, he forced the momentum of his stomps to increase the radius and directed it straight towards 8912. She cried out pain as she fell and a bit of the rubble got caught on her foot.

"Aww is the bitch stuck?"

Now he regards them as dogs?

Quickly he held a strong grip at her neck. Would he suffocate her to death? With a grin he forcibly brought her up.

"AHHHHH!" 8912 screamed,

I forgot to mention, she now has one foot.

"Boring." Accelerator sighed,

I saw the thumb gentle rubbing her Adam's apple. Suddenly Accelerator's eyes widened and I closed my eyes just to hear a crushing sound. Opening them back up I saw 8912's slumped body. Her neck and ripped foot were bleeding.

An interesting sight has to be Accelerator picking up the torn foot and he started to chew away to top. Is this what they call cannibalism? Someone eating their own kind? Would it even be called cannibalism since 8912 was a clone and he isn't? He quickly spitted out the chewed skin.

"I should have known foot would taste like ass." Accelerator glared,

I could feel his dark eyes right at me and made me feel unease. Despite his now calm face and eyes, I could feel his insanity still.

"Hey you," he called out, "Get over here."

Was he ordering me around?

"My only job is to observe the experiments," I answered, "Not clean it up like the other sisters."

Then he started to laugh. It seems like his laugh was hurting his stomach since he was clutching it.

"Observe my ass!" he retorted with menace, "These stupid clones don't need an observer! They're all connected to that network! Knowledge is passed through all living clones!"

Wait that's the Misaka Network? All of them thinking together. They could see what others see. They could experience what others feel. Then why am I here?

"With that look on your face I guess you're not connected to their network!" Accelerator laughed at me,

Those insults should hurt me but why does it feel like all those accusations were true? Perhaps it is true.

"And judging by your level I guess you're lower than them too?" he wondered,

His observations skills are indeed nearly flawless. I refuse to believe he is perfect.

"I'm a level 1." I admitted,

His laughter even got louder and wilder. Once he stops he took a few deep breaths.

"Man you really are a defect! You're not even worth killing!"

Accelerator left the bloody scene with a grin.

Why do those words hurt? All other insults were perfectly reasonable but defect seemed to hurt me.

My only response was a frown. It really did bother me. Why was I, of all the clones, disconnected from the Misaka Network? Why am I the weakest in terms of esper power? Why do the clone look down on me? Was it because I never was given a serialization?

"Defective Misaka please leave the scene Misaka requests with a polite tone."

Turning around I see, at most, a score of clones. I guess they're 8913 all the way through 8933.

"Hey Misaka." I called one of them out,

"Yes what is it Misaka wonders as she starts to clean up the scene."

"What do you mean by defect?" I asked,

There has to be a meaning. All of them called me the defective one.

"You were born the same as Misaka, Misaka starts her explanation."

"However Misaka cannot read or detect you through the Misaka Network Misaka explains as she puts the body in a bag."

"Also your esper level is significantly low compared to Misaka, Misaka ends her reasons."

It felt bizarre to see a group of them completing each other's sentences, but I guess that's the power of a combined network. However it does make seemed like they were all one mind in multiple bodies instead of having their own individuality. Unlike them I was given my own will. I was not a drone, yet I'm a clone just like them.

"Say who is our supposed original?" I asked one of them,

"Misaka Mikoto is our template Misaka answers with an obvious tone."

Misaka Mikoto I should remember that name.

"So any of you guys know what's she like?" I asked another question,

"It is Misaka's desire to see onee-sama Misaka holds her happiness within." one of them answered,

So none of them ever saw her. I wonder what's she like? Obviously with these looks and being a level 5, the real Misaka must love to fight! I recall the scientist complaining about her wearing shorts under the skirt. I wouldn't blame her these things are short.

...

It took them all night to clean up the mess and fix the damages. Now it looks like the battle never happened. None of the sisters said goodbye to me and the next one was headed to her death.

"Defective Misaka your purpose for observation is invalid Misaka almost forgot to say."

What?

"Observation role is not needed at all due to the Misaka Network, Misaka waves her hand dejectedly."

So not only I've been mocked for my low esper level, now they said my role is unneeded. Then what is my role? Was I really just thrown away? Was I really that defective?

Looking up the blue sky I wanted to vent out.

"Why me!?" I screamed,

What should I do now? If my role was unneeded then am I technically free? Was this what that scientist wanted me to do? Yet I do not know how I should live. After all most of my short life I lived at that lab with all those other sisters. Even though we were isolated from the rest of humanity, my so called sister isolated me as well. I was a freak among freaks.

Suddenly I saw a clone approaching me.

"Misaka almost forgot to give this to Defective Misaka, Misaka huffs as she gives the backpack to her sister."

She does not look tired at all.

"Thanks," I thanked her,

When she left I looked at the contents of my new backpack. Lets see I got a: wallet with some cash and a credit card, some extra uniforms, some spare actual clothes, and a phone. Turning on the phone I realized it was the latest model. Touchscreen interference is very convenient and the internet is at the touch of my fingers.

"Misaka Mikoto." I tried out the name,

I wasn't going to take her identity. I was merely curious about her and I wish to find more about my supposed onee-sama. When I typed her name at the search, the first thing it showed me I had clearance. Clearance for what? Must be from that scientist.

Then it showed a page about her. She's a level 5, some of her most well known titles were 'The Railgun', her signature move, and 'Ace of Tokiwodai', her school title.

Ace huh? She is rank 3 among the level 5, not too high nor too low. She was right between all of them.

I clicked on level curious on how they were ranked.

"No way!" I gasped,

Their ranks weren't based on their strengths but based on researchers' interests. Of course Accelerator was the top, his power made him practically invincible. Then there was the rank seven, none of the researchers have no idea how his powers work thus he is ranked the lowest.

Back to researching the original, I found the address of where she lived. She lived at a dorm specifically for her school and she had a roommate. Level 4 teleporter and a member of Judgement? What's that? Back to main topic! I found the address of her school as well, School Garden. Maybe I could observe her from there.

If I figure out what the original does I would find some purpose as well.

"Tokiwodai here I come." I whispered,

Opening my backpack I smiled when I saw some shorts. My disguise would be perfect! If can't find the original I should just look for their data center and find anything about her then.

...

I felt so many stares at me. These girls were wearing the same uniform as me. I guess they were seeing their Misaka. I gotta keep up this straight faced facade, I don't want to break down here. All those looks were making me nervous and scared. Plus I might accidentally ruin the original's reputation.

I finally made it to their date center or rather the library. There were so many books and computers. I never thought I would see stacks of various books all in very tall shelves. The best part has to be the lack of students. I guess this wasn't one of those so called hot spots.

First I should check any info about Misaka Mikoto via school website. If that doesn't work I should check out books about our power, electromagnetism.

Then I felt something in my head. In a metaphoric sense, it was a battering ram breaching the castle gates. My head was the castle gates while the feeling was the ram.

"You're not Misaka," a voice was directed at me,

Looking around I saw various students appearing with blank looks on their faces. All of them seemed to be brainwashed by Telepathy. The only telepath that is capable of brainwashing this many people and is a registered student at Tokiwodai is ranked 5 among the level 5. Shokuhou Misaki has blown my cover.

Misaki looked older than her actual age and I noticed she seemed to be an early bloomer. This is somehow disturbing.

Damn how would the real Misaka react to Misaki. Ugh their names are too similar. Think me.

Of course! It's a rivalry! Pretty simple reason: two level fives attending the same school must have some serious rivalry between the two. I must act rude!

"Are you blind you bimbo?" I mocked her, "Of course it's me Misaka rank 3!"

"Nice try but Misaka doesn't brag about her rank." Misaki chuckled,

Damn well at least I know Misaka isn't one to brag about her rank.

My cover was blown her Mental Out could easily break me, I'm just a level 1.

"You're like Dolly," she gasped in shock,

Dolly? As in the first cloned sheep? Or was it that other project? Does she mean the prototype clone?!

"I'm not this Dolly," I shook my head, "I'm Defective Misaka a flawed clone,"

I had a grim look with that cursed word. I despised it yet it was true. I felt so vulnerable compared to the other sisters. Accelerator might be right I'm not worth killing.

"Another one?" she hid one of her hand at her back,

Suddenly I heard a click and my mind felt like it was being invaded. Dammit her Mental Out, w-what's she doing?

"I could wipe it away," she said suddenly with a solemn look,

Did she just looked into my memories? With my eyes widening at the fact my memories were seen, I froze. What did she mean wipe it away? Did she mean my memories?

"There's no point I do have a shorter lifespan," I replied honestly, "I want to enjoy what's left of my life,"

"Even if you have no purpose?" Misaki asked,

She got me there. I still don't know what to do even after getting thrown away. Damn my defectiveness. I stayed silent for the next few minutes.

"Listen you shouldn't be here," Misaki told me, "The real Misaka is coming back and she might see you."

She gestured to some of the mind controlled students and lead me through one of the emergency exits. Before Misaki closed the door she told me something with a smile on her face. The smile wasn't misleading or fake it was genuine and filled with worry. Maybe this Dolly really had an impact on her.

"Be careful."

When the door closed, I decided to leave the School Garden. Looking up up the sky I wondered what I should do.

END AN: So what do you guys think?

That's right the central protagonist is a Misaka Sister codenamed Defective Misaka. Well she is a level 1 esper and isn't connected to the Misaka Network. The scientist at the beginning should be obvious it's Shinobu. That was the prologue and the main story will start at the Level Upper Arc. Yup going through the Railgun story first, since it did happened first chronologically.

That's all I wanted to say.

Enjoy your day!