(Pure dark, original plot, original settings, modified plot details, slight OOC)
Xu An, a retired peacekeeper, is forced into an incident. He spends a long time trying to resolve it, but gets nowhere. As time drags on, he grows physically and mentally exhausted, and the psychological pressure becomes ever more severe. He decides to flip the table. Wouldn't it all be over if he killed everyone?
But things don't go as he wishes. The incident does come to an end, with him arrested for serial murder and sentenced to immediate execution at his first trial. Yet fate is always playing tricks on him. He doesn't die. Instead, he arrives in a new world...