Song Yuan, a top-secret agent codenamed "Zhulong", was betrayed by his comrades and drank nine bullets at the border execution ground. When he opened his eyes again, he became a trash patrolman in old Shanghai. On the first day of his rebirth, he rescued the female liaison officer codenamed "Nightingale" on the street who was supposed to die three days later. No one knows that this seemingly useless patrolman has an entire future intelligence database deep in his brain that is decoding darkness. While the enemy was still transmitting information in Morse code in the secret room, Song Yuan had already opened the headlines of international espionage three days later and handwritten a death note that spanned time. Lurking behind enemy lines? He directly punched through all the hidden stakes, making the conspiracy aborted. The ups and downs of the spy sea? He revealed all his cards in front of his opponents, letting them know everything.
