An autistic mathematical genius with a rare "pattern recognition" ability - he can "hear" the underlying logical cracks in the Japanese military's cryptographic system from the radio wave noise. His golden finger is not a superpower, but a mental model from the nonlinear mathematics of the future world. But the enemy he faces is not the code, but the bureaucracy of the entire intelligence system, departmental walls, and the complexities of wartime human nature. When he discovered a huge "error" hidden in the top-level secret electrical system of the Japanese army, he realized that this "error" was not a coincidence, but a beacon deliberately left by another lurker - a distress signal from an unknown camp.
