Lin'an City is prosperous on the outside, but decayed on the inside. At the end of the Southern Song Dynasty, the iron hooves of the Yuan army were pressing closer and closer, but what really drove the Song Dynasty to the abyss were the "black hands of national subjugation" hidden in the glory. Gu Qingchen, the daughter of a movable type craftsman, has been endowed by her family with an unusual "type psychic" ability since she was a child - she can smell the sculptor's emotions, the printer's intentions, and even perceive the blood and conspiracy contained in each movable type. This ability is like a double-edged sword, making her invincible in the espionage battle of movable type codes, but it also puts her under an unimaginable mental pressure, as if she was "suppressed" by the movable type. When her family was wiped out due to a leak of secrets, Gu Qingchen was forced to get involved in Wen Tianxiang's most secret anti-Yuan network. Not only did she have to evade the Yuan army's thousand-mile pursuit, but she also had to face the bottomless corruption and betrayal within the rebel army. Those who seem to be loyal and righteous people have betrayal in their movable typefaces. Gu Qingchen must rely on her "psychic" ability to interpret movable type, struggle to survive in blood and tears, identify the real "Nightmare Town" people from the movable type, tear off the hypocritical mask of the late Southern Song Dynasty, and use the movable type in her hand to depict the true face of those "black hands who subjugated the country".
