Late-Night Rules: A Police Academy Student's Survival Guide

At midnight, the whole city was still asleep. Beside Lin Yue, a fourth-year police academy student, lay a death manual bearing his name. Its first page held a single line: Tonight at midnight, do not open the door.

The doorbell rang. Standing outside was someone with a face exactly like his.

When rule-based horror descended upon reality, one deadly rule after another began to govern the city. From eerie knocks at an old house to another version of himself copied inside the subway, death was never far away.

While others relied on brute force to scrape by, Lin Yue drew on the crime-scene investigation, observation, and criminal-investigation skills taught at the police academy, turning each deadly rule into a trump card against the horrors.

This isn’t a monster encyclopedia. It’s a police cadet’s survival guide.