Erika Itsumi is a second year Sensha-do vice commander at Kuromorimine Girls' Academy. She is generally hot-headed and mean, has long silver hair and blue eyes and is the commander of a Tiger II. Koume Akaboshi is a second year Sensha-do tank commander at Kuromorimine Girls' Academy in her Panther G. Koume is kind and sweet, has curly brown-reddish hair and blue eyes. Both love German culture and food, and both are girls who compete in Sensha-do, a school sport with tanks.