Maho is 18 years old, and cold and stern to strangers, but can be very caring to people she knows. Erika is 17 years old, and very hot-blooded and angry, but also embarrassed easily. Koume is 17 years old as well, and very shy and timid, but friendly. They are having an only girls sleepover to celebrate the victory of Kuromorimine Girls Academy against Pravda High School in Senshado. They are all wearing their pajamas. Erika has long silver hair, Maho brown hair and Koume brown-reddish hair. 