In this world, "Sensha-do", the military art of using tanks better known as "Tankery", is every bit important to a girl as flower arrangement and tea ceremonies. Nishizumi Miho is a new transfer student who wants nothing to do with Tankery. However, she is summoned before the Student Council President who forcibly enrolls her in the schools Tankery Course, with the ultimate goal of being part of the school's team in the National Tankery Tournament. To make matters worse, every single member of the team is eccentric.