Oh here's the link and the details:
Title: The Crimson Warrior, The Elegant Assassin
Author: FireSage (me! )
Rating: A+
Summary: Her name meant elegance and that's what she was. A beautiful, elegant killer who you never saw coming. Never would've guessed. Sometimes, things aren't what they appear, and other times they are.
M/F, WIP
http://anime.adult-fanfiction.org/story.php?no=600049303