Cold. Dispassionate. Unbiased. Strong of heart and mind and will.
Sin was everything a Reaper was expected to be. She was more than that, she was the most effiecient, capable Reaper Death had in his command. However, that was just the issue. At any given point, Sin was never quite in her master's grasp, always there was something that made her toe the line.
And with a series of warnings, she was given one last chance. Capture the soul of a rampant demon or be outcast and bereft of her duties for the rest of eternity. That did not sit well with her.
So it was a Sin who was highly intent on her job who appeared suddenly in the garish night of a bleak and ugly city. For it was here that her acute honing senses had led her, and it was here that she would prove Death wrong. She could be the greatest Reaper he'd ever created