The sky becomes a mirror and the world doesn't recover, it just learns to exist broken. You watch children born into this new reality develop powers they don't understand while everyone around them pretends normalcy is still possible. The animation doesn't move much, but it doesn't need to, every frame sits with you like a photograph of grief, and the score builds dread that rewrites itself on a second watch. This show trusts you to sit in confusion and find meaning in what doesn't explain itself. It's slow enough to feel like watching something die. It's for people who want their anime to hurt without flinching away.
Scientists gather at Heaven's Gate, the tomb of the mythical king Gilgamesh turned into a laboratory, to study immortality, until the work is judged unethical and halted. Terrorists then storm the site and set off an explosion that brings down the advanced information civilization. Afterward the sky becomes a mirror, electronics stop working properly, and children born since the blast show strange powers. An elite group of powerful young mutants, directed by a woman called The Countess, works to restore the world. Years later, siblings Tatsuya and Kiyoko Madoka, children of a scientist at the Twin X facility, are running from thugs when they are drawn into a war between two secretive factions. Both sides claim to fight for a better society, and the pair must decide whom to trust. The story blends drama, fantasy and science fiction.