Keiko's men are dead, slaughtered by peasants in a desperate attempt to obtain food for their starving families. She is the last of her line; without her, the noble and ancient house of Hakuseki will die. In order to try and save her family name, this noble samurai warrior woman is forced to humble herself at the feet of the local daimyo. When he ridicules her and takes the family estate for himself, the samurai code of bushido says there is only one thing left for Keiko. Vengeance. Keiko plots to take revenge for the actions of her greedy noble lord and revenge against the men who wanted to buy her and keep her as their slave. Just like the praying mantis, Keiko lures her enemies into a sense of safety before taking her revenge...