Their adaptation mentions several dates that change the time the story is set in by almost 10 years. It uses the line "in the near future", but on Shogo Kawada's profile, it references the 2005 "program"; he says his last program was a year ago, leading to the assumption that the manga sets the story in 2006. In volume one of the English-language version, Shinji Mimura and the news channel reporter mentions the 2007 record of three days, seven hours and twenty-two minutes. In volume 14, Kamon refers to the 2009 program. None of these dates are mentioned in the original Japanese version.