Devilman G or Devilman Grimoire (デビルマンG(グリモワール)) is a Japanese comic book series written and drawn by Rui Takato based on the original Devilman by Japanese cartoonist Go Nagai. It was produced by Dynamic Production as part of the celebration of the 40th anniversary of Devilman. The cartoon was originally serialized from 2012-03-19 (cover date #2012-05), with a short chapter 0 or prologue, to 2013-12-19 (cover date #2014-02) in Akita Shoten's magazine Champion Red for a total of 22 stories (21 regular plus the prologue).