One sunny day, invaders arrived from space. They were not little green men or cute girls in school uniforms; instead, they were ugly robots that defeated the UN forces in seconds. After the initial assault, the invaders, known as “eyeballs”, roamed the Earth, observing human society. They were peaceful unless provoked, polite, and even obeyed traffic laws. Nevertheless, Earth's inhabitants wanted them to leave. The Kitanohashi High School Magic Club took it upon themselves to defeat these foul robots and free the world.