A lady nun orders the skilled ninja agent to infiltrate a religious cult that is plotting a conspiracy and is put under a spell, making it difficult to do her job and topple this secret organization. The lives of many people are thrown into chaos during Japan's Edo period. During all the mayhem, a religious cult is plotting a terrible conspiracy. A ninja nun, concerned about the secretive plotting, orders Kaede to infiltrate the cult. While successful, the skilled ninja agent is put under a spell by one of the priests causing her to become feverish with lust over one of the cult's relics. Her ultimate mission is to topple the secret organization but will she become distracted and succumb to the siren song of the deadly spell?