This is the story of a group of boys who try to save the world! As boys, Kenji and his friends came up with a bunch of stories about an evil organization bent on world destruction. As adults, someone is now turning their fantasies into reality!Humanity, having faced extinction at the end of the 20th century, would not have entered the new millennium if it weren't for them. In 1969, during their youth, they created a symbol. In 1997, as the coming disaster slowly starts to unfold, that symbol returns. This is the story of a group of boys who try to save the world.Will 2015 bring an end to human history?! An urgent but mysterious messsage left by her mother Kiriko in 2002 finally reaches Kanna. But where is Kiriko, who developed the germ warfare weapons used on Bloody New Year's Eve, and what is she doing now? Memories of New Years past flood the minds of Kenji's friends and family. Will Yoshitsune's clandestine actions eventually prove fruitful, or are they doomed to repeat the tragedies of the year 2000?Meanwhile, Otcho and Kakuta are busily trying to track down Kiriko's former colleague, Dr. Yamane. Unexpectedly, their search leads them to the very neighborhood that Otcho, Kenji, Maruo and the rest of their childhood pals grew up in. Can a visit to their old school shed new light on a bizarre incident that happened when they were all in the sixth grade?