The story revolves around a man who loses his memory in a traffic accident and wakes up surrounded by the women of the El Palacio – a female professional wrestling group. Unable to regain his memory, he ends up living with the El Palacio and becoming their referee.
Junan, a former instructor of swordplay for the Shogun family, went to Nagasaki and studied medicine. After coming back to Edo, he becomes a highly skilled doctor that he is now also a medical examiner for the magistrate's office. But no one knows of his the other side: he goes out and punishes the evil using his secret weapon… “needle of death.”
Each of four very normal high school first-year students - who are very close friends - tries to find their own answer to the question: "The earth will perish on Christmas Eve on December 24th of 2004. What will you do until that day comes?"