Be Cold from the Beginning to the End

The nuclear explosion in 2031 was a terrorist incident designated by the United Nations as Incident 137 with a death toll of up to 7 million. No one knows whether the explosion was caused by a nuclear blast. I don't know the story behind it either... After the nuclear explosion, superpowers were born. In order to prevent superpowers from using their own power to do whatever they want, the United Nations established an academy to manage them uniformly. And our male protagonist will also appear 17 years later... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.