 In March 2020, Funimation confirmed they would license and dub the series.Written by Yoshiyuki Nishi, "Muhyo and Roji's Bureau of Supernatural Investigation" premiered in Japan in the 53rd issue of "Weekly Shōnen Jump" released on November 29, 2004.The series ran in the magazine until its conclusion in the 14th issue published on March 3, 2008.