Miho Nishizumi, a new transfer student at Ooarai All-Girls High School, wishes above all else to enjoy a peaceful, stress-free school life. Unfortunately, her new school has just revived its tankery program (Senshadou; the manipulation of tanks) and enlists Miho to assemble a team so that they may compete in a national tournament. As Miho struggles to overcome her turbulent past with tanks, she must first learn to tread lightly with her eccentric companions. Can Miho possibly plow through the challenges and master the art of tankery, or will she get left behind in the dust?