Daily Law Enforcement in the Underworld

With the roar of machinery, the souls of the dead reappeared, and the ensuing social changes gave birth to a peculiar profession: Black and White Impermanence. Just like the myth, this is an industry that serves the undead. The work includes law enforcement, arresting illegal undead and rectifying social security. The difference is that here, Black Impermanence is a human being and White Impermanence is an undead soul. Strange combinations, outrageous work nature, thrilling work content, and various characters, what will the adventures of the protagonist group be like? Please also listen to what I have to say. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.