In 1948, the Shanghai beach was filled with smoke. The seemingly cynical young master of the Ministry of Military Affairs, Yi Shihuan, was ordered to audit the central bank's accounts, and met Cheng Changfeng, the cold and strict director of the Audit Department. A military supply account hides a shocking conspiracy to transport gold to the south; a chipped copper coin leads to a fatal chess game of double lurking.
He is the romantic "white paper" and the dormant person code-named "95"; he is the "iron abacus" who must pay every penny, and he is also a hidden stake in the underground financial line. From the temptation in the ledger room to the protection at gunpoint, from the night chat by the Suzhou River to the life and death trust at Waibaidu Bridge, abacus and bullets fly together, lies and sincerity are intertwined.
When faith and love sprouted in the secret war, and when their identities were exposed one after another in the dangerous city, one of them went north to Pingjin and the other stayed in Shanghai. They wrote love letters in code amidst the raging war, and used abacus to move the world on the eve of dawn. This is a game that started with numbers, and it is also a legend that grew out of the flames of war - when the red flag rolls over the Huangpu River, their names will eventually be written side by side on the paper.
Concept: spy war