Sixth volume of the Japanese anime series, set in a world where witches have dangerous supernatural powers, and where the covert STN section tries to hunt them down. Robin is the latest recruit after one agent is killed, her own magic skills quickly marking her out as one of STN's most powerful operatives. In this volume, Robin and Nagira think they have finally found the trail that will lead them to Amon, while Zaizen learns that he could be the target for another Hunter.