In Shanghai in the 28th year of the Republic of China, the rain of the rainy season entangled the neon lights and smoke of the French Concession. Jiang Bai, a military special agent lurking in the Japanese Army's Special High School, deals with swords and swords as a translator. A broken jade pendant hides the secret of Wusongkou's troop surge, and also holds his code name of "Nightingale" and his uncertain fate.
The murder at the Silk Village broke the silence of the rainy night. Gu Yixi (codenamed "Du Juan"), a newcomer to the military command, lost all his contacts in the pursuit of Agent 76, leaving only half a jade pendant and a vague code. When she bumped into Jiang Bai, who claimed to "send you to a safe place," she didn't know that the Peiping man in front of her who spoke fluent Japanese was the lurker she wanted to deal with.
The clock shops in the French Concession hid Morse code, the oil paper in the tailor shop was wrapped with deployment plans drawn with special ink, and the black car No. 76 Always lingered like a ghost in the alley. Jiang Bai's true identity has not yet been exposed, and the suspicion of Sato, the head of the special high school course, has followed closely; Gu Yixi fled with the information, but found that every step around him was stepping on the trap set by the inner ghost.
From the Sakura Restaurant on Xiafei Road to the clock tower of the racecourse, from the lathe in an abandoned factory to the attic of a tailor shop, two lonely souls collide in the maze of the occupied area. When the sharp eyes of "Nightingale" collide with the stubbornness of "Cuckoo", and when half of the jade pendant is finally put together, can they send the intelligence out of this troubled city under the double strangulation of the Japanese army and Wang's puppet agents?
