The address book was leaked, exposing 3,000 comrades! Lin Yu, codenamed "Raven", was surrounded by Japanese troops with a gun pressed to the back of his head, but he was killed on the spot with a forged secret order one second before the gunshot.
He is not an agent. But he could deduce the troop deployment of the entire Kwantung Army based on half a burnt telegram. Everyone thought he had rebelled - only on the third day after he sneaked into Demon Cave No. 76, News came from Nanjing that the iron-barrel-like intelligence blockade collapsed overnight.
When the code name "Ghost Sees Sorrow" resounded throughout Shanghai, the enemy did not know that this pseudo-government section chief wearing gold-rimmed glasses was using a blank piece of secret order to turn the entire war situation around.