The explosion of the quantum laboratory in 2025 threw military scientist Lu Chen into the whirlpool of Hong Kong gangs in 1985. Carrying a titanium alloy tactical pen that can pierce bulletproof glass, he was forced to be reborn as a Hong Hing thug in the bloody storm of Kowloon Walled City, only to find that every battle he participated in surprisingly overlapped with the "Secret History of the Triads" sealed in the archives forty years later.
When the butterfly knife pierced Dongxing Honggu's eardrum, and when the ashes of the burned account books on a rainy night floated to the British warship stationed in Hong Kong, Lu Chen gradually realized that the time travel itself was a closed-loop conspiracy - the bullet hole scar on Chen Haonan's neck actually matched the shooting record of the border police in 1983, the gold lighter played by Liang Kun was engraved with the family emblem of the future owner of the Macau casino, and the tactical pen stained with countless blood was the missing component of the quantum collider that caused the laboratory explosion.
In the historical torrent of the Asian financial crisis and Hong Kong's return, Lu Chen circled between gang rules and future technology, trying to reverse the fate that was destined to be written into the ICAC files. When he stood on the top floor of the Convention and Exhibition Center on June 30, 1997, and the sniper rifle scope reflected the alternating moment between the five-star red flag and the Union Jack flag, he was shocked to realize that the "dark law of security" that had been maintained for forty years was just a sandbox deduction of a higher-dimensional civilization.
