[Apocalypse + sci-fi + no saintly protagonist + logic + superpowers + intelligence + decisive and ruthless + no zombies + rationality]
The war broke out three years ago with such suddenness that no one still knows which side fired first, or who launched the first nuclear missile.
After covering most of the sky with nuclear ash, humanity also destroyed nearly all infrastructure and manufacturing capacity.
During the brief respite, as nations tried to rebuild after the disaster, certain organizations and factions deliberately steered events until every rule was overturned!
The old order vanished…
Humanity entered the apocalypse, and also the age of AI and subnuclear power~
