Dead Dead Demon's Dededede Destruction (Japanese: デッドデッドデーモンズデデデデデストラクション, Hepburn: Deddo Deddo Dēmonzu Dededede Desutorakushon), also abbreviated as DDDD, is a Japanese manga series written and illustrated by Inio Asano.

It was serialized in Shogakukan's seinen manga magazine Big Comic Spirits from April 2014 to February 2022, with its chapters collected in 12 tankōbon volumes.

The story follows two young women, initially high school seniors and later college students, struggling with the mundanity of life after an alien spaceship appears over Japan.

An 18-episode original net animation (ONA) series edition of the films streamed worldwide on Crunchyroll from May to September 2024.

The situation leads to a cold war between the humans on Earth and the invaders in the mothership above the Tokyo skyline.

The focus of the story is not on the alien invasion but on human nature and growing up in a turbulent and uncertain world.

Lilas Ikuta, while the second part features the theme song "Seishun Ōka" (青春謳歌, lit.

[57][58] An 18-episode original net animation (ONA) series edition of the films streamed worldwide on Crunchyroll from May 24 to September 20, 2024, featuring new footage not included in the theatrical release.

Gaga [ja] released the episodes in Japan on a limited Blu-ray Disc box set, which became available for purchase through its online store on December 4, 2024.