Workers at the Fukushima Daiichi facility in Japan risk their lives and stay at the nuclear power plant to prevent total destruction after the region is devastated by an earthquake an tsunami in 2011.

1989 is the 64 Shouwa year in the Japanese calendar, thus the unsolved girl kidnapping-murder case is called “64(rokuyon)” that got up in this year in Criminal Investigation Department in the Prefectural Police Department. And 14 years were over as the prefecture’s police to be unsolved greatest stain, and statute of limitations approached it. In 2002, Yoshinobu Mikami, an ex-detective who was assigned as the investigator of the “Rokuyon” case 14years ago, moves as a Public Relations Officer in the Police Affairs Department against his will. As a newly assigned Public Relations Officer, he was troubled with the relation between the reporters, new case has occurred. And that new case traced “Rokuyon” case exactly.

1989 is the 64 Shouwa year in the Japanese calendar, thus the unsolved girl kidnapping-murder case is called “64(rokuyon)” that got up in this year in Criminal Investigation Department in the Prefectural Police Department. And 14 years were over as the prefecture’s police to be unsolved greatest stain, and statute of limitations approached it. In 2002, Yoshinobu Mikami, an ex-detective who was assigned as the investigator of the “Rokuyon” case 14years ago, moves as a Public Relations Officer in the Police Affairs Department against his will. As a newly assigned Public Relations Officer, he was troubled with the relation between the reporters, new case has occurred. And that new case traced “Rokuyon” case exactly.

In a post-war alternative timeline, Japan is divided into the North, controlled by the Union, and the South, controlled by the United States. A mysterious high tower rises within the borders of the Union. Three high school students promise to cross the border with a self-built airplane and unravel the secret of the tower.