Apocalypse: Spire Hour

Thirty years ago, nuclear weapons landed near glaciers, causing severe nuclear radiation pollution and rising sea levels. The ancient virus, which had been silent for an unknown period of time, quickly spread around the world as the glaciers melted and the ocean currents drifted. As a result, about 80% of the world's major species have become extinct, and the genes of all remaining life have changed as a result. The physical quality of the surviving humans has been greatly improved, and their potential has also changed. However, the evolution speed of other species far exceeds that of humans, and the rulers of this world are no longer humans... Against this background, the story begins with the tallest spire in Yaninko City...