The Night Police are not natives of this city; only outsiders have a chance of becoming part of them.
The old man revealed the secret of the Night Police, which brought upon him the naked killing intent of the Black Crow and corpse ghost. This city is exceedingly exclusionary, with fierce resource competition. If too many learn about the Night Police's identity, their situation will deteriorate.
"I've survived for decades, knowing every rule of this city. It's like a piece of rotten Flesh and Blood full of sores, from the Municipal Council Hall to the slums, every corner is contaminated with unspeakable filth. I've been through so much and finally found the path most suitable for the Night Police." The old man was driven to a dead end; Night Police cannot fight among themselves, but the gunmen from the slums are unrestricted: "You're too young, too naive! When this city opens its jaws wide at you, it'll be too late!"
