You Were Told to Be a Spy, but You Became the Special Higher Division Chief?

A Shanghai dockworker's life takes a deadly turn when he's recruited as a low-level agent for the Military Statistics Bureau. Sent undercover to expose a traitor within the notorious Japanese Tokkō, he never imagined he'd rise through enemy ranks to become their division chief. Now trapped in a web of espionage where one wrong move means death, he must play both sides perfectly—or lose everything.