Sugahara debuted the Minna no Tonio-chan manga series in 1999. The series inspired an animated special in 2004. The thought experiment revolving around the 500 Million Year Button has been a philosophical discussion topic in Japan ever since Sugahara's story launched.
Anime adaptation of the short story "5-Oku-Nen Button" from Souta Sugahara's Minna no Tonio-chan manga series.