A large spaceship appears over Tokyo three years before the story starts. A one-sided war against the seemingly harmless aliens ensues, sparking controversy and pacifism. Despite this unique and tragic event, high school girls Koyama Kadode and Nakagawa Ouran behave as if nothing has changed. They live their days like they always have. The focus of this story is not the alien invasion, but human nature, dialogue, growing up, and life.
Unfortunately the movie Dead Dead Demon's Dededede Destruction Part 1 is not yet available on HBO Max.
| Writing | Reiko Yoshida | Screenplay |
| Art | Mika Nishimura | Art Direction |
| Directing | Tomoyuki Kurokawa | Director |
| Writing | Inio Asano | Comic Book |
| Sound | Taro Umebayashi | Original Music Composer |
| Visual Effects | Nobutake Ito | Character Designer |
| Visual Effects | Nobutake Ito | Supervising Animation Director |
| Camera | Takuma Morooka | Director of Photography |
| Production | Takaaki Suzuki | Researcher |
| Visual Effects | Satoshi Takezawa | Color Designer |
| Sound | Takeshi Takadera | Sound Director |
| Visual Effects | Satoi Inami | CGI Director |
| Editing | Masayuki Kurosawa | Editor |
| Production | Koichi Inaba | Executive Producer |
| Production | Tatsumi Yoda | Executive Producer |
| Production | Ayumi Ohigashi | Producer |
| Production | Shinya Keyamura | Producer |
| Production | Nobumasa Sawabe | Executive Producer |
| Production | Yukio Kawasaki | Executive Producer |
| Production | Shunsuke Muramatsu | Executive Producer |
| Production | Yoshikazu Beniya | Producer |
| Production | Junya Okamoto | Producer |
| Sound | ano | Theme Song Performance |
| Sound | Lilas Ikuta | Theme Song Performance |
