Hi there everyone :)

Okay, so this is my first Fairy Tail fanfic and I'm really excited to have you all read it and tell me what you think. Okay, cool! But before you start reading though, I would advise you to first check out the cover image of the story or my avatar, so you can get an idea what the OC's looked like.

I hope you enjoy it and please be sure to tell me what you guys think of it by reviewing!

Summary: What if Natsu had a sister and brother and this whole other life he couldn't remember. They sure did look like him and the girl claiming to be his sister was sure a lot like him in many ways. Not to mention that she was a slayer, a Devil Slayer. Great. Just what the world needed another Natsu. Pairings: Natsu x Lucy, Gray x OC, Mirajane x OC

Disclaimer: I don't own Fairy Tail or any of its original characters.

Chapter 1: Talking cats & exhibitionists

"You can't kill me! I am Franmalth, member of the dark guild, Tartarus and one of the Nine Demon Gates!" It snarled.

I couldn't help but laugh. Here was I standing over this short, round humanoid-like creature with my sword to his throat and he – at least I think it was a he – had the nerve to call me out. Demons were sure stupid, honourable, but stupid nonetheless.

"Wanna bet?" I countered, running my sword through his eye. I didn't like to be challenged especially by some ugly mother like this one.

"Care to explain why you just killed our only lead?" My older brother calmly asked as he strolled over.

Don't be fooled by his gentle appearance, the man was a wizard just like me. Cato used a caster magic known as Flame God Slayer Magic that incorporates the element of fire into the user's body, allowing them to produce black flames from various parts of their being – which he mostly used as a means for offense.

"He brought it on himself."

In fact I might have even done him a favour putting him out of his misery 'cause not even his mother could love a face like that.

Franmalth or whatever his name was, was a demon created by the Black Mage Zeref through the use of living magic from his books.

"He might have known something about Zeref's whereabouts!" he frustratingly growled and shook his head in disapproval.

"I doubt it. After all, he was stupid enough to call me out even with a sword to his throat. Which reminds me -" I pulled my runic sword from his lifeless body his black tar-like blood dripping from it.

"Honestly Seren, you're way too reckless. You needa grow up." My brother preached, his arms crossed over his broad chest. "I swear sometimes you make me feel like an old man!"

I grinned giddily up at him and scratched the back of my head. He was right; I was too reckless, too impulsive and too stubborn to admit all this out loud. Cato had always been the serious and mature – not to mention boring - one of the family.

"So where are we off to next?" I asked.

"Magnolia and then we head south. There's been a demon sighting in Hargeon."

Magnolia was located in the South-eastern part of Fiore, with the sea and the port town of Hargeon not too far to the south. The whole place was western in style with its buildings mildly resembling that of neat medieval ones.

"It's all so pretty!" I squealed as we walked past the Kardia Cathedral – one of Magnolia's most distinctive landmarks. It was my first to Magnolia.

"Why don't you go check out the city? I have business to attend to anyways which I doubt you'd be interest in." Cato stated and smiled encouragingly down at me.

"Really?!" I almost squeaked, clasping my hands together excitedly. Cato wasn't usually big on letting me wander around alone seeing as often got into trouble. So if he was offering, I'd take it!

"Yeah. Just be sure to be at the HalfCocor Hotel by nightfall."

"Thank you, thank you, thank you!" I cried excitedly as I jumped my brother, wrapping my arms around his torso.

"Ha-ha! Okay, off you go."

"Check you later!" I called and dashed off.

Where would I go first? The cathedral or maybe that cake shop all the tabloids were always going on about. Apparently they had the best strawberry cheesecake throughout the entire South.

I was walking around, searching for some sort of road sign to tell me where I was, when I ventured into a market. There were people selling everything from carpets to freshly harvested goods to magical potions.

"Need help with romance? Try a love potion!"

"Freshly baked bread! Get your freshly baked right here!"

"Cabbages. Two for one!"

This was so cool! I had never been to a market before – well, at least not one like this. We normally didn't stay that long in a town to actually go exploring and shopping.

That was when something caught my eye. It was an adorable little blue cat sitting by a stall which sold fish.

"Hey there, kitty!" I greeted, "Do you want a fish?"

"Aye!"

"Well then, why don't I -" Hold on a second! The cat just talked. Was I going crazy? Cats can't talk! I was seriously freaking out when…

"Oi! Can I get my fish? Haven't got all day, you know!

"You can talk?" I asked, feeling rather stupid that I was talking to a cat. From where I'm from we didn't have talking felines.

"Yes. I'm Happy! You're weird, but I like you." Happy introduced himself, ironically calling me weird. He was a talking blue cat for goodness sake! "So how about that fish?"

"Yeah sure."

I bought him a packet of sardines from the fishmonger which he took eagerly. Honestly, I was still in shock.

"Thank you, strange pink-haired person!" he greeted and flew off. Flew?! I think I need to sit down. The excitement was too much.

I couldn't wait to tell Cato about Happy and the market, though I don't think he'd believe that I met a talking, flying blue cat. There was just too much wrong that story.

"Help! Thief! Oh please, someone help me, he stole my purse!" an elderly lady cried as a man ran off in the distance with her belongings.

Before I could even register what I was doing, I sat off after him. I was fast. Not as fast as Cato, but much faster than the average person and besides I had a lot of stamina, so it was really just a matter of time before I would eventually catch the guy.

I was gaining on him, skilfully dodging people and all I had to do was reach out and grab him by the back of his collar. Easy!

But suddenly I couldn't move my feet. What the hell? My feet had been frozen solid along with that of the rest of the road - the entire surface covered in glittering ice. If that wasn't weird enough, next thing I knew, a guy wearing only his boxers came skating by.

Great. When it wasn't talking cats, it was exhibitionists!

"Yo, dickhead! Unfreeze me this instance!" I screeched. I was so close to getting the guy who stole that lady's purse but no, this idiot had to intertwine.

"Oh shit! I'm sorry, Miss." He turned around and apologized.

Oh my! He was gorgeous! His hair a bluish black, his body toned and muscular, and his eyes a deep blue reminding me of the colour which my toes were getting from still being frozen… hey, wait a minute, where was I going with this?! I didn't know the guy!

"You better be sorry, moron!"

"Jeez. What's your problem?!" He snapped back as the ice started scattering around my feet and soon enough turning into water.

So he was an Ice Mage. Figures. I didn't exactly get along with their type mostly since our elements were polar opposites. Fire and Ice.

"You!" I hissed, giving him the dirtiest look I could muster and stormed past him, ducking into the nearest alley.

My heart was pounding in my ears. It was out of control, jumping in my chest as if prompted by an electrical surge. This was new.

"Hey Gray, who was that girl?" I heard someone ask.

Were the newcomers talking about me?

"Dunno."

"Well then, let's get back to the guild and check for a job! Mira said a lot of new job requests came in today. So let's go before all the good ones get snatched up."

"Yeah. There's this one for 2 million jewels just to catch a some guy from Tartarus." Another added - which I noted was a girl seeing as her voice was rather high-pitched.

The chatter faded and I reemerged from the alleyway.

Did she just say Tartarus? It was one of the three major dark guilds alongside Oración Seis and Grimoire Heart. And if it really was someone from Tartarus the client was after, then this was a job for an expert. Not some guild wizards.

It was a job for a Devil Slayer and I knew just the gal for the job. I used Fire Devil Slayer Magic which was a form of magic that allowed its user's – moi – to use fire to slay demons.

But first things first, I needed that job request sheet and the information it held. But I doubted that Fairy Tail would hand it over willingly. So I was going have to find a way to infiltrate the guild and steal it when no one was around. Shouldn't be too difficult.

"A talking cat you say?" Cato laughed as we sat at a table in the hotel's restaurant, finishing up our dinner. "I knew mom dropping you as a baby was eventually gonna have its consequences. But in the form of a blue, talking cat, I would never have guessed!"

"I'm telling you the truth, Cato. I'm not smart enough to make this up!" I defended, really irritated with my brother for not believing me.

"Look, Seren, you used up a lot of magic energy fighting Franmalth yesterday and barely had any rest since then. So maybe it was just a hallucination due to exhaustion." He stated caringly but not even the compassion in his voice could have defused my anger.

"I know what I saw." I responded menacingly and stood up, throwing my napkin on the table. "I'm going to bed."

Cato was the only person I had left in the world and I felt bad for making such a scene when he was just showing his concern. But I didn't have time to go back and apologize.

I hadn't told him about it because I knew he wouldn't approve of my method of obtaining it. So I was going back to the room we rented for the night, stuffing a few pillows under the sheet to make it look like I was sleeping and then scale done the ferns next to the balcony.

This was simple enough.

The guild was dark inside out and there didn't appear to be anyone around.

The Fairy Tail guild resided in an imposing building consisting of three floors. The roofs bore great resemblance to those of real pagoda, consisting of extremely long, arched tiles lined up one after the other. On the highest roof, topping the summit of the building, sat a simple, round and pointed dome, highly reminiscent of those seen on Arabian buildings, which bore a flag on its point. The roof below the one with the dome housed a large banner with Fairy Tail's symbol on it, held up by a pair of vertical poles. The building's large entrance was again Arabian in design, with its shape resembling that of the dome on the summit, and above it was the guild's name. Stylized heart shapes were also visible on the frames of the numerous, large pentagonal windows located on each floor.

The windows! That was my way in and so I swiftly made a hole in a window using my Devil Slayer Magic's Holy Flame. Climbing through the window I was greeted by the darkness and silence of the empty guild hall. Perfect.

Igniting one of my fingers, I snuck over to what seemed to be the job request board, using my flaming pinky as a candle. I never knew guilds' had such exciting jobs! There was one for a female wizard to pose as some billionaire's wife actually fulfilling the job of a bodyguard and another seeking brave mages to escort a package all the way to Bosco. What an adventure that much be and to think you actually get paid for it.

There were other interesting job requests pinned up as well but not the one I was looking for. Someone must have already accepted it. But where would the keep the accepted jobs' flyers. Surely they didn't throw it away.

"Oi Natsu, I can't believe you actually forgot your scarf!" I heard as the doors creaked open.

You got to be kidding me! The door had been open all this time?! I felt stupid. Really stupid. But no there wasn't time for that now, someone was here. Thinking on my feet, I ducked behind the bar and would you believe my luck, there was the flyer I had been looking for laying on top of a piled up stack.

"Yeah, I can't either. I normally never take it off." The guy said, turning on the hall's main lights.

So he was a Fairy Tail wizard. Maybe if I just waited it out until he left, I would be fine – that's to say as long as he didn't check behind the bar.

"Found anything yet, little buddy?" He asked.

"Aye sir! Found it in the kitchen."

Why did that voice sound so familiar?

"Great. Now let's head -" He stopped in mid-sentence and sniffed. "I smell something... there's someone here!"

Oh shit! Busted! I could run - but he'd surely chase me down - or I could fight, ruff him up a bit and have a clean getaway. Well now, this was an easy choice to make.

"Show yourself!" He roared.

"As you wish!" I jumped over the bar elegantly, both my hands engulfed in crimson red flames. This poor guy had just made the biggest mistake in his life, taking me on.

"Let's make this snappy," I sneered, "Devil Slayer Flaming Cur-"

No… It couldn't be. Those eyes, that grin, that hair. He was supposed to be dead! No, this must be a hallucination just like Cato had explained earlier! Yeah, that was it! It wasn't him! He was dead!

It was too much.

I fell to my knees clutching my head and I could feel myself struggling to breathe. Little droplets of blood streamed down the sides of my head as my nails dug deeper into my scalp.

It was happening again. I could hear my parents screaming for their lives and smell the blood that flooded the streets. I could feel Cato restraining me as we watched our house explode with my little brother trapped inside. Dead. All of them. Dead. Deliora. Killed. Mom. Dad.

I looked up and saw him standing over me, his own hands engulfed with brilliant gold and orange flames. No it wasn't him! He was dead!

"Nat-su." It left my mouth in a mere whisper but I could see he heard it. After that my vision got blurrier and before I knew it I was thrown into an endless abyss of darkness.

Thank you for reading and hope you enjoyed it :)

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Midnyte25