A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard's downfall, he used the wizard's body as a springboard to gain influence and power in his new world.
As the end approached, Edward the Eighth grew more and more reckless. He would spend most of his days drunk, and most of his nights with women. He stopped caring about his reputation, because he knew that he would not remain in power for long. His behaviors began affecting members of his court as well. The noblemen were even more crazy than their ruler.
No one tried to stop Edward the Eighth, or tried to rule the nation. If all men must die, then they might as well do some things they won't normally do. Edward the Eighth was indulging in this madness because he knew that there was no point in struggling anymore. The capital city Diamond City began following its monarch's descent into chaos as well. The entire city had forsaken its duties in order to seek pleasure instead.