My-Otome Zwei(2006)

My-Otome Zwei is an anime series set one year after the original My-Otome. Arika has become a full Otome under Maria's continued guidance, while Nagi remains imprisoned. The world's nations have achieved peace and convene S.O.L.T. talks to limit Otome numbers globally. When a meteor threatens Earl, a rescue mission triggers catastrophic consequences. A mysterious shadowy figure attacks Garderobe and multiple Otomes, while a stronger Slave variant emerges worldwide. The situation worsens when Queen Mashiro vanishes following a confrontation with Arika. The series follows Arika's desperate search for Mashiro and Garderobe's investigation into the shadowy attacker's identity and motives.