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 |
| Visual Effects | Takeshi Takakura | Mechanical Designer |
| Visual Effects | Chuo Higashiguchi | Creature Design |
| Art | Yoshinori Hishinuma | Art Designer |
| Writing | Takaaki Kidani | Original Concept |
| Visual Effects | Eiji Inomoto | CGI Director |
| Editing | Hitomi Sudo | Editor |
| Art | Atsushi Morikawa | Art Designer |
| Visual Effects | Reiko Iwasawa | Color Designer |
| Visual Effects | Mai Toda | Character Designer |
| Writing | Sunao Yoshida | Original Series Creator |
| Visual Effects | Takeshi Takakura | Creature Design |
| Visual Effects | Makoto Ishiwata | Mechanical Designer |
| Visual Effects | Niθ | Mechanical Designer |
| Sound | Yasuharu Takanashi | Original Music Composer |
| Sound | Hajime Takakuwa | Sound Director |
| Camera | Toshiya Kimura | Director of Photography |
| Visual Effects | Shinov Mimori | Character Designer |
| Sound | Emi Takanashi | Sound Effects |
