Set in the 26th year of the Republic of China, Shanghai’s foreign concessions are a battlefield hidden in plain sight—teams of spies, military agents, and corrupt officials vie for control.

Chen Zhifei, once a humble police constable at the Meilan precinct, is suddenly promoted to “Chief Detective,” prized by various factions for his sharp insight and uncanny ability to gather intelligence.

He’s recruited by the Military Intelligence Bureau, courted by the Special Higher Police, and included among the puppet government’s inner circles... all because he awakened the Daily Intelligence System, granting him one critical piece of intel each morning.

With this knowledge, he walks the shadows of espionage, manipulating enemies and allies alike.

A small patrolman in the British Concession accidentally awakens to the "Daily Intelligence System". In the chess game of the Songhu Secret Battle, he is both a chess piece and a chess player - until the gears of history are reversed because of him, and all lies and loyalties become chips for survival.