Jealous of Setsuko's beauty, the wicked geisha Izanami orchestrates the murder of her father, the daimyo of a mountaintop castle. After an assassination attempt leads to a coup, Setsuko suffers a catastrophic injury and is forced to flee the only place she's ever called home and take refuge in the woods with a group of exiled samurai. Orphaned, abandoned, and disabled, Setsuko must learn the truth of what it means to be a samurai, if she ever hopes to reclaim her family's honour and take her revenge.