In the near future, an invention known as the has solved all of the world's energy-related problems five years ago. This powerful machine creates energy from the sky and now lies in the centre of an artificial, man-made island called Blue Island. On another such island named Izu Ōshima, a girl named Akane Isshiki lives a peaceful life with her family. Her grandfather Kenjirou is a smart yet eccentric scientist who is also the inventor of the Manifestation Engine. Because of his invention, the world has entered a new era of peace. However, this peace didn't last for long.
