Shanghai Beach Magical Calendar

1941, Shanghai Gudao. The Japanese army's new "radio wave positioning vehicle" was put into the battlefield. Once the radio station was activated, it was locked and destroyed within fifteen minutes. The underground intelligence network has been severely damaged, and the connection between the occupied areas and the rear will be interrupted. At a critical moment, a bookkeeper wearing a long gown and holding an old abacus walked into the secret front of the concession. His name is Su Yunqing, and he was once the accountant of a large commercial bank in Shanghai. He may seem humble and dull, but he is actually a well-known "divine calculator" in the world. He is proficient in the lost ancient art of Yi Xue and the secret secrets of various sects. Without a radio, he relied on abacus to deduce enemy ship defense changes; without a code book, he used published ancient poems to convey city defense information. When the Japanese technical officer Ichiro Sato finally realized that he was not facing another radio station, but an ancient mind, a desperate battle between "human wisdom" and "machine precision" quietly began. This is the darkest era, but it is also an era where our character still remains. Can the calculation of an old-school literati change the destiny of a nation? Although the radio waves are silent, the wind and bones are still ringing.