Game rules suddenly invade reality, and mysterious anomalies appear successively in the peaceful city! Trainee law enforcement officer Li Ang is accidentally involved in a vampire dispute, and when trapped in adversity, he unexpectedly gains a special game system! Relying on abilities such as identifying sin values, completing tasks, and obtaining rewards, he continuously unlocks superpowers, gradually growing from an ordinary law enforcement officer into an extraordinary powerhouse. However, as vampires, werewolves, and mysterious forces successively make their appearance, the secrets hidden behind the city are gradually uncovered. Facing the successive challenges, how will Li Ang utilize his system abilities to break established rules and write his own legend?