Plot Summary: One year after the events of Mai-Otome, an asteroid on a collision course with Windbloom kingdom is destroyed – barely – by an international task force of Meister Otome. Subsequently a new and more powerful kind of Slave appears, along with a sinister black-robed entity – or entities – able to easily overpower the most powerful of Meisters. Not only this, but Arika and Mashiro’s troubled relationship is hindering the use of the Sapphire of Azure Sky – possibly the one weapon powerful enough to defeat this new adversary.