The protagonist is a Chinese military radio operator who was captured due to a radio malfunction and was transformed into a "humanoid signal tower" by the Japanese bacterial weapons laboratory. His mandible became a biosensor and his cochlea became a transmitter, able to send out or receive specific Morse codes whenever he tapped his teeth or changed his heartbeat. After his release, he became the "source of false intelligence" thrown by the Japanese army to the Chinese army. However, with his advanced communication encryption methods and desperate willpower, under the eyes of the Japanese army, he used his own body as the only source of information to connect the scattered communication nodes of the national army on the entire battlefield in western Hunan, and staged a top-notch double-agent drama of "he was in the dark and he was in the dark".
