The extremely boring professional field of "code breaking" has been made extremely exciting and watchable through the setting of "thinking supercomputing". The protagonist becomes a "humanoid decoder". He no longer needs to rely on a lot of mathematical deductions and machine operations, but can accurately lock the direction of deciphering through intuition. This imagination puts the famous "Code War" during the Anti-Japanese War on the stage, focusing on the "silent battlefield" that people rarely understand and determining the situation of the war, allowing readers to intuitively feel the shock of "a wrong number, leading to the destruction of a division".
