Ray, Anne Tyler, Halle and Eisuke - high school students, are involved in a mysterious incident. The newcomers, who are called " Grey ", kidnapped sister Halle and inserted into her brain a special chip.Friends are trying to save his sister Halle, but again faced with the mysterious happenings. History of high school students moving to a shocking turn of events! What truth is hidden on the back side of the moon? What are the true intentions of the aliens imbued in America, Russia and China? What trouble is approaching the Earth and is there any hope for the future..?