In the 26th year of the Republic of China, Shanghai was in a stormy and dark environment.
Gu Xingyao, the daughter of the Gu family who used to be well-off and well-off, suddenly fell into decline. Her parents died tragically, and the family property was coveted and occupied by the gang leader Shen Xiaoshan. Carrying the smuggling account book left by her father, she took off her fine clothes and struggled in the mud as a trainee reporter, vowing to expose the darkness and clear the way for her relatives.
He is Zhou Mohan. On the surface, he is a popular figure among the Japanese. He deals with gangs and enemy agents, and is as cold and distant as cold iron. In fact, he is a military agent lurking in the dark, shouldering the important task of investigating the collusion between the enemy and puppets and smashing the conspiracy. His world is filled with missions and sacrifices, and he never believes that there is warmth in troubled times.
An unexpected rescue in Yuxiang created a bond between two hearts that should not have met. She glimpsed the glimmer of light beneath his cold outer shell, and was moved by his stubbornness in her desperate situation. From the thrilling escape in the dock warehouse to the hypocrisy and subterfuge of the "China-Japan Friendship Association", they tested each other in the light of swords and supported each other in the fog of troubled times.
The secrets of the account book led to death, and the kidnapping of the Japanese spy forced him into a dilemma - should he stick to the justice of his family and country, or should he run to the side of his lover? When the gangster's gun was pointed at her chest, and when the spies from the special high school surrounded his path, they realized that love in troubled times is never about romance, but about the courage to trust each other with life.
The yellowed account book records sin, the blood-stained pen writes justice, and the knocked-on jade bracelet and the umbrella handle engraved with the word "cold" bear witness to the two souls illuminating each other in the beacon fire. When the truth is revealed to the world, the smoke clears in Shanghai
