Gyahaha! Let me enjoy my fifth year of writing stories in this site. Ain't it fun~ Getting back to the topic, this story was inspired by those other fanfics I've read about Juvia being a highly trained assassin. Don't get me wrong, okay? I am a Gruvia and Nalu fan, but I wanted to try writing about this crack pairing. By the way, please take note that the rating will change in the future chapters due to Juvia's dangerous love.

DIsclaimer: Oh, you know I don't own Fairy Tail. It's far from being mine. HAHA!

Summary: Because Juvia didn't really expect this to happen. The captain of the special police force, Sabertooth, living in the same flat with an assassin means nothing but a ruckus.

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She grasped the iron bars that were separating her from freedom. Deep gashes, cuts, and bruises marred her pearly white skin. Blood stains covered her tattered clothes, even her hair had turned into brown due to her own dried blood. Every scar on her body told a story, and none of them were safe for a child to hear.

Whips resounded throughout the vicinity, together with the cries of the young children who were newly captured. The pain in her chest was long gone. Pity was long replaced by apathy. Before, it horrified her how kids younger than her would be experiencing such cruelty, but now, she just couldn't bring herself to care anymore.

"This one is good at cooking! You won't have to go back home and prepare meals after a tiring day. Not only that, look at his muscles! He can fight for your safety! Buy him for 15,000 jewels only!"

The slave market.

"If anyone of you favors cute girls, then this little kid here is just for you!"

Is where I learned the importance of survival.

Pedophiles shouted in excitement as the seller dragged a chained girl onto the stage. She watched her shake in fear, staring with wide eyes at all the middle-aged men filling the entire area.

"The bid starts from 20,000 jewels!"

I'm a rejected product…

"25,000 jewels!"

"30,000!"

"33!"

"38!"

Because I wasn't obedient to my masters.

"40,000 jewels!"

"40,000 jewels from the man wearing a red tuxedo! Can anybody give a higher amount? Going once! Going twice! Aaaaaand SOLD!"

Clouded blue eyes focused on watching the bidding, failing to notice the two figures approaching her small cage. Beside her tiny prison stood the cage of her best friend who was eyeing the males heading towards their direction.

"But, sir, those kids are not for sale! They are failures! I assure you, they are no good slaves, dear customer."

They listened quietly to their conversation. Her best friend was snarling at the buyer, noticing how he scrutinized her like his lab rat.

"I don't care. I'll be happy to buy your rejected products for a high price." The customer stared at her filthy blue locks before his sight shifted down her dull blue eyes. He scratched his chin in wonder. "Hmm… although I never thought I would see a girl here. What's the problem with her?" He asked, taking note of the troubled face of the dealer.

"She has been… a bad girl, sir."

"And how can a cute girl like her be bad?"

The hesitation was evident in their conversation. It seemed that this girl had serious business.

"That child was previously a thief before we got her. We tried to discipline her, but she ended up… killing... her masters."

A smirk formed on the mysterious guy's lips, and at that moment, they all knew he was planning on something grim.

"I'll take her... plus this boy who keeps throwing daggers at me. Perhaps, I could teach him how to throw a real dagger."

The dealer gave him a wary look. But what can he say? He was willing to pay, so why not? Handing him the contract, Jose Porla signed his name on the piece of paper.

Once the jewels were handed, Juvia and Gajeel knew their lives will never be the same. They gazed at him from their narrow prison, giving him a full view of the faces that would soon be his ace card. Both of them were perfect!

He bent down in front of Juvia's cage, curling his fingers around her wavy locks. Gajeel, on the other side, sneered at him behind the bars, seeming like a ferocious animal seeking for its prey. This only made the grin on his face widen even more, and now he was sure he chose the right children.

"I can't believe I got myself a killing machine for a cheap price." He let out a malicious laugh, not minding the attention he was receiving from the people around him.

Since that fateful day, I've been known as "Arachnid" of the Phantom Lord… the Black Widow that watches from the shadows of the night.

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"GAH!" The blond suddenly jolted on his seat, surprising everyone inside the meeting room. By everyone, this included his older brother who happened to be THE GENERAL of the famous police force: Sabertooth.

Laxus glared at his sibling from his spot. He knew the captain of the Special Force Unit A had no plans on listening to his speech, but he didn't thought of the possibility of him daring to dream while he was talking.

The silence continued until another yelp was heard on the other side of the far table.

Of course, they all knew whom it came from.

"Captain Natsu of SFUB (Special Force Unit B), I am used to you sleeping before the meeting could even start," he said before facing the other offender. "As for you, Sting, it's quite a surprise you let yourself get caught this time. I guess the two of you wouldn't mind the colonel looking after you during the next meeting."

At the thought of the infamous scarlet head, they shook their head vigorously with sweats dripping down their forehead.

They thought Laxus' scolding would never end, since he appeared like he didn't need air to speak. His words came out swiftly next to the other that Natsu thought he was challenging them in a rap battle.

So, as the idiot he was, he cheered him on.

"You go, man! You must be better than Wiz Khalifa!"

Sting was sure he heard something pop.

Another wave of ranting could have battered their ears if it weren't for Mirajane putting a stop to their useless argument. A cough escaped the General's lips as a faint blush spread on his cheeks. "Now, where did I left?"

What he didn't know was each official in the room was restraining themselves from smirking at the honorable man.

Sting tried to give his entire attention at their topic, but every time he would hear the word "mission," he cannot help remembering his first and only failed task. It was the greatest humiliation he experienced throughout his whole life so far. The others didn't mind his failure; however, to him, he felt his pride go down the drain.

He's a very competitive man, and with the fact that Natsu had a clean record of accomplished missions, the frustration he felt grew day by day.

The incident occurred a long time ago, yet he recalled it clearly with accurate details.

He swore he will redeem himself.

When I find you, Black Widow, I'll make sure you'll regret crossing paths with me.

Little did they know... the most twisted cat and mouse game had begun.

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Just to get you,

I'm doing whatever works.

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Yes, I know what you're thinking. Yup! This fic is also inspired by a song. Anyway, please review, so I'll know what to improve on besides my grammatical errors. If anyone of you is confused, Juvia's real title is Arachnid, but the media and the rest of the people call her Black Widow, since she remains as an anonymous assassin known for her venomous attacks.

Again, reviews are highly appreciated!