Between Crimson Skies
She was accused of killing a young crab samurai. She is presumed dead but Hiruma Usigo knows better. She left never to be seen again. She left in her wake a trail of taint. As she left the men who accused her became mad. There were more murders that ensued. It reached a point that the asuki daimyo scratched out his own eyes. She is the one case that is yet solved by the emperial magistrate. He has now passed this mission on to Kyoten, to find her and bring her to justice.