Features English subtitles. bloodthirsty butchers documentary film reasserted and released on blu-ray for the first time (DVD re-release). "kocorono" is a film about the miracle of the band's continued existence, a special community of destiny made up of individuals who have chosen to leave and devote themselves to rock music. Directed by Kawaguchi Jun of "77BOADRUM" (2008) and "Yamaguchi Fujio: Minagoroshi no Ballad" (2014). The Title of the film is named after Butchers' masterpiece that describes the mental landscape of 11 months beginning with "February" and ending with "December. For this re-release, the director supervised a grading process that included color correction. The material used for this re-release is completely new and different from the material used for the original release 10 years ago.