Dead Dead Demons Dededede Destruction (ONA)

The narrative unfolds in a Tokyo perpetually shadowed by a colossal alien mothership, a constant reminder of the devastating conflict that began three years prior. While the world grapples with large-scale warfare and political upheaval surrounding the Invaders’ arrival, the everyday lives of high school students Kadode Koyama and Ouran Nakagawa continue seemingly undisturbed. Their youthful routines—school, friendship—are juxtaposed against a backdrop of societal decay and disillusionment with authority. As they mature, Koyama and Nakagawa confront a chilling realization: the true danger facing humanity isn't from the extraterrestrial invaders, but from the darker aspects within themselves and those who wield power. The series explores themes of generational trauma, the erosion of hope in wartime, and the complicated nature of adulthood in a world teetering on the brink.