The Soul of the Town tells the story that a special investigation office can solve cases that the living can't.
Zhao, director of the special investigation department under the state organs, is not only a civil servant, but also a master of the necromancer, and his staff are not all people.
Killing Soul mainly tells the past lives of Zhao and Shen Wei.
Zhao is the executor after his death.
Shen Wei, on the other hand, is a soul-slayer, who can "go to 33 days and go to 18 prisons, and all souls can be beheaded by a knife for whatever reason." It is also the defender of the order after death.