AN: Hinata is probably OOC in this. But I think that as far as the plot line of this story is concerned, its not to far a field of probability. That and I have a sick twisted desire to watch this old bat suffer. Secondary story to this small series is still in the works, I haven't forgotten it, I've just been very busy.
WARNING: Takes place somewhere after chp 490 of the manga, so spoilers to that point, and it's a bit dark.
Koharu woke with a bit of a start, not quite sure of what had woken her. She rolled over and nearly jumped out of her skin to see the hilt of a katana protruding from her pillow where someone had driven the weapon down into her bed, right next to her head.
She sat up shakily and took a closer look at the sword that could have easily ended her life and found a note wrapped around it, just above the small hand guard. It was with no small amount of trepidation that the council woman unwrapped the paper and turned on the light so that she could read the neat, crisp script that flowed across the small sheet.
'Your guards are not infallible, and you are not immortal. Perhaps you should remember these things when you are in a position to alter the course of someone's life, lest your decisions come back to haunt you.'
Koharu brought one quivering hand to her chest and gripped the fabric of her night dress just above her heart. It had been sometime since she had not felt safe in her own home, but she felt completely exposed and vulnerable now. Someone had come dangerously close to killing her this evening, and she had a good idea of who. But she knew, just as well as the pale eyed girl who had written the note in her hand, that there was no way for her to seek retribution against her would be attacker without exposing her own sins as well.
The council woman collapsed into the chair near her bed and tipped her head back, closing her eyes. Perhaps it had been a mistake to place such an eager young woman with one of the only people capable of raising her up to her full, lethal potential. Now, it seemed, Koharu would have to wait and see if the girl would truly act the part of executioner, because she knew without a doubt, that if the girl decided to take that path, their would be nothing Koharu could do to stop her.
Across Konoha Hinata was just crawling back into her own bed. She knew it wasn't usually in her nature to be vengeful, but she couldn't deny herself this one small act. She knew the old woman would constantly being wondering if she would survive the night, would know her life was within Hinata's hands now that Root, the only group of Shinobi that might have accepted orders to kill the Hyuuga heir without question, was disbanded. And for Hinata, the thought that Koharu would never get another peaceful nights sleep, would never be free of Hinata's lurking shadow, was the best punishment she could think of.