. Setting- It is 1969, the 44th year of Showa. Japan is in a high economic development and steadily recovering from a war nigh 20 years ago. The birth of colored TV. The advent of bullet trains. People are eagerly anticipating the Apollo 11 project that was scheduled that year. Unbeknownst to the good citizens of Japan…of earth, a hidden enemy was making it’s way into our society…the invaders. They live among us, eating our food, working our jobs, reading our newspapers, drinking our coffee…feeding our children. They have been masquerading as humans…until now. The horrible truth that has faced Japan at the end of World War II around 1949 is wriggling into our lives to enslave the human race. Humans have no way of stopping them… Ordinary humans, that is. The Gates, a discovery that would change the course of history. All energy forms exist in a plane on their own and converge in this dimension. Some humans have the genetic gift to control these gates and draw power from them. They are the GATEKEEPERS. Thus A.E.G.I.S., an international intelligence system on the hunt for aliens, have made it their primary mission to find these men and women to use their profound abilities to protect the future… As luck would have it, the gatekeepers were no more than ordinary high-school students… Or were they?..