Koume Akaboshi

Koume is a student from Kuromorimine Girls' Academy. During the 62nd National Tournament in the finals against Pravda, her tank fell into a river. She almost lost her life in this incident; but was saved by Miho Nishizumi who left Kuromorimine's flag tank to rescue her at the loss of her tank with been immobilised by Pravda with used the situation that has arisen, costing them the tournament and breaking their victory streak. This incident led to widely debated dilemma in relation to not only Katyusha whose immobilized abandoned tank but also Miho whose tank abandoned.