Title: Fist of Fury

Summary: Taking revenge on Sasuke is an impossible task.
Disclaimer: I don't own Naruto.
Prompt: Achilles' Heel
Rating: T
Warning(s): Language, violence.
Comments: It's a comedy, I promise!

Sasuke, like any other ninja worth his salt, had an established morning training routine and whenever he was finished with it and went home to take a quick shower, he made it a habit to check his mailbox. The only letters he usually received were bills for water or energy, so this time he paused as he found a black, suspicious-looking envelope in there. He eyed it with an expression of mild curiosity, but didn't open, instead setting it on a kitchen counter, as he figured it could wait. The shower was calling him...

In the end, he forgot all about the strange letter, especially since he was summoned by the Hokage for a mission. It would have saved him a lot of effort that day if he just took the time to read it...

Sakura woke up in a dark, unfamiliar room, bound to a chair and gagged. All she had remembered from the last night had been her exhaustion after a particularly tricky operation and a double-shift in the hospital. Someone must have nabbed her on her way home, because she could feel a throbbing, splitting pain in her head, no doubt caused by a heavy blow that had taken her out.

The light was suddenly switched on and Sakura closed her eyes, partly because she was blinded and partly due to her headache multiplying. When she could finally safely open them and look around, she found a man sitting right in front of her, a stupid smile plastered on his face as he tutted.

"You should really be careful not to hurt your pretty eyes, baby," he said condescendingly.

Sakura glared at him. She could sense his controlled chakra, so even without wearing a headband she was sure he was a ninja, what was worse – highly skilled one, definitely jonin-level.

"You look like you want to say something," he mocked. "Well, since your man didn't come to save you, I guess I could allow you your last words."

Sakura felt perplexed by his strange statement. She didn't have a boyfriend, so who could he possibly refer to?

The man took off the cloth from her face and she spat out the gag.

"What the hell are you talking about? What do you want?" she demanded impatiently.

"I must have hit you harder than I thought if you don't know, sweetheart," the man raised his brow at her lack of understanding. "I captured you to bait that damn Uchiha," he spoke that last name as if it was a curse, "but it seems he doesn't care about his woman at all, since he didn't show up. Isn't he a bastard?"

Sakura stared at the ninja in shock. Where did he get the idea that she was Sasuke's woman?

"I see you can't believe it too," he said almost sympathetically. "Well, you're out of luck. If you can't be a bait, I'll just have to kill you and find out if he has some other weakness to be exploited." He reached for a kunai and leisurely strode over to her.

The man was clearly finished talking. Which was good, because Sakura was finished listening.

With her already inhuman strength aided by the burst of unadulterated, boiling hot fury, she ripped apart her restraints and got up in a flash, then, letting out the bloodthirsty battle cry, she punched the shocked ninja right through the wall. Or, from the sound of it, through two walls, actually.

"I'm not a fucking weakness, you dumbass!" she roared after him and followed, intent to beat him up some more.

Sasuke, who has spent all day long searching for Sakura, was getting a little tiny bit worried. She had disappeared the last night and they had an assigned mission for the very next day. Where could she have gone, he wondered in frustration, as he walked along the riverbank.

A loud booming sound and a familiar flare of chakra alerted him to Sakura's presence. With a newfound strength, Sasuke ran towards it. From a distance he could see a lone abandoned shack with a large hole in one of its walls. Outside it, he spotted Sakura bashing some guy into the ground. Sasuke winced nearing the bloodbath as he heard the sound of bones snapping in half like frail twigs.

"Just who the hell do you think I am!" Sakura yelled to her victim in the absolute fury. "I'm Haruno Sakura, Tsunade's apprentice, not some weak little girl!" To make a point she kicked the man's abdomen, making him spit out more blood and grovel pitifully at her feet.

"Sakura," Sasuke stepped in, "what's going on here?"

"That fucking prick," she ground her heel down, forcing the man's head into the dirt, "thought he could take me hostage and get away with it!"

Sasuke raised an eyebrow at the idiocy of such a scheme.

"You... damn Uchiha..." surprisingly, the downed ninja was coherent enough to recognize Sasuke. "You're a... real demon... to have such a monster... for your woman..."

"Just what did you call me!" Sakura shrieked.

Sasuke smirked, finally piecing everything together. He made that ninja into an enemy during his travels with Taka. But if the man's idea of revenge was to kidnap Sakura, thinking she was Sasuke's weakness, then he obviously had another thing coming.

Yes, even if she didn't know about it yet, she was the perfect woman for the Uchiha, Sasuke observed proudly, looking on as Sakura, shouting obscenities, pummeled the poor idiot.

AN: Sorry, it's not so long, but I had a killer headache all day. Hope you enjoyed this installment.

Feel free to review or just point out the mistakes.