An asteroid collision brought with it a deadly menace known as "Shinobi." Faced with destruction, humanity retreated to land reclaimed from the sea. The one ray of hope is a device that can fight the Shinbo called "The Mechanical Divine General." Ame, the princess of the refugees, and Suō, who carries the blood of the Yagyū family, must awaken its power in order to save the world.
Unfortunately the movie Neppuu Kairiku Bushi Road is not yet available on HBO Max.
| Writing | Ukyo Kodachi | Screenplay |
| Directing | Masayuki Sakoi | Director |
| Writing | Norimitsu Kaiho | Screenplay |
| Sound | Yasuharu Takanashi | Original Music Composer |
| Writing | Takaaki Kidani | Original Concept |
| Writing | Sunao Yoshida | Original Series Creator |
| Visual Effects | Shinov Mimori | Character Designer |
| Visual Effects | Mai Toda | Character Designer |
| Visual Effects | Eiji Inomoto | CGI Director |
| Sound | Hajime Takakuwa | Sound Director |
| Camera | Toshiya Kimura | Director of Photography |
| Visual Effects | Reiko Iwasawa | Color Designer |
| Editing | Hitomi Sudo | Editor |
| Sound | Emi Takanashi | Sound Effects |
| Visual Effects | Makoto Ishiwata | Mechanical Designer |
| Visual Effects | Niθ | Mechanical Designer |
| Visual Effects | Takeshi Takakura | Mechanical Designer |
| Art | Atsushi Morikawa | Art Designer |
| Art | Yoshinori Hishinuma | Art Designer |
| Visual Effects | Chuo Higashiguchi | Creature Design |
| Visual Effects | Takeshi Takakura | Creature Design |
