A/N: This was done for a short story contest on OneManga forums, and the prompt was "Unexpected Visitor" and the story HAD to be 350 words. I hope it's clear what's going on at the end.
Disclaimer: I don't own Naruto, Kishimoto does.
Eternity. That was what he had promised her, eternity, but not even a year since he said those words he left her; abandoned her to walk this broken world alone. She wanted to hate him, to spit upon his grave, to curse his name, he had promised her eternity, they were supposed to die together, but fate despised her, laughed at her.
She had watched in horror as the enemy redirected her jutsu, as the torrent of wind slammed into his body, releasing his hold upon his opponent, as the flash of metal gleamed in the air for an instant, as his blood splattered onto her face. Oh how she chased them afterwards, attacked with everything inside her, as her blind rage absolved her of all reason. They were horrified of the monster chasing them, screaming as the sharp winds pierced their bodies, and sliced through their souls. She relished the agony in their voices as they cried for mercy, and for the first time in her life she knew what it was her brother felt as the desire for their blood and torment coursed through her veins.
There was nothing left of them by the time she was done, her winds had decimated them to nothing more than puddles of blood and one inch chunks of flesh and bone. Yet even after all that her lust for their decimation had not been sated, for when she found her way back to him, he was already gone.
That was many years ago, yet her heart still ached for him. She would find herself crying out his name like she did that day, her wounds were still fresh, her pain was still raw. Every day she wandered the streets, a ghost amongst the living, stalking the world, searching the shadows for his smile.
On a particularly dark and moonless night, she found herself waking to the sound of his voice calling her name. As she opened her eyes and looked toward the door, she saw the shadow of her love reaching out to her, whispering "I've come to fulfill my promise."