the show was first announced on november 1, 2007, when gonzo and nitroplus at the nitro super sonic event with ichiro itano as the director with naoyuki onda doing the character and mechanical designs of "blassreiter". in addition, a manga adaption of "blassreiter" was created with the supervision of gen urobuchi and yasuko kobayashi as it was written by noboru kimura and drawn by shū hirose.