Shortly after Ooarai's 'liberation' match (as everyone decides to call it), the Ministry decides to place a new tank limit; 1960's vehicles only, main battle tanks to be specific. So tanks such as the M60, Centurion mk.10, Leopard 1, T-54 (you get the idea) are the only tanks permitted to be used. The Ministry also decides to introduce mixed education (boys and girls together) in the schools. This story is about a male German student with the name of Anton Schmidt, who is now a student at Kuromorimine, and how he deals with the other students and love.