Disclaimer: I do not own RWBY, it belongs to Rooster Teeth animation and Monty Oum.
Summary: This story is AU and takes place after everyone has graduated from Beacon. Ruby and Weiss take a mission on their own while Blake and Yang are on their honey moon and things go wrong. This story is White Rose and Bumblebee.
Prologue:
Red, like so many rose petals scattered in the wind, that was the first thing that registered in her mind. So much of that color flying in the air past her face as she flew into a nearby tree barely registering the jolt of pain as her back connected with the wood. The next sensation to register in her mind was a mixture of panic and rage. Her blue eyes widening as she stood up weapon firmly in hand.
"Get. Away. From. Her!" The white haired heiress screamed as she used her semblance to launch herself at the Grimm. This should have never happened, that was the thought running through her mind as she buried her weapon deep into the beast. It was all her fault.
She had let her guard down after Ruby had killed what she thought was the last of the Beowulf. But they had been wrong there had been one hiding in the underbrush. Weiss hadn't seen it lunging at her but Ruby had, and she'd used her semblance to place herself in the beast's path and knock Weiss to safety. However in doing so the younger girl hadn't been able to save herself from harm even with how much she had improved.
Once the Grimm dissolved into nothing Weiss moved to her partner's side and tried to staunch the bleeding. "You can't do this to me… You promised me. You promised we'd be together… Please Ruby don't leave me..." She said through her tears using her scroll to call for help while still trying to staunch the flow of blood. She didn't even care that her white dress was being stained.
Luckily a patrol of Atlesian soldiers were in the area. They managed to load Ruby onto the airship and the medics began to work to stabilize her as the heiress sat beside her holding her hand. Yang was never going to forgive her for this. The blonde had entrusted her baby sister to the heiress. Weiss was supposed to keep her safe.