My name is Chen Xiaogu, a storyteller in a Shanghai teahouse. I have the ancestral "yin and yang eye" that specializes in seeing through people's hearts. On the day the Japanese occupied the concession, I made an anti-Japanese joke in the bookstore, and the traitors in the audience showed murderous intent. That night when the bodies were collected in the alley, they found that the victims of starvation had turned blue at the tip of their tongues - cyanide killing was definitely not an ordinary starvation death. After saving the mysterious woman Liu Hanzhi who was shot, she said: "The poisoning is the beginning of the devil's "underworld plan". They want to dissect a hundred thousand hearts alive to create evil weapons." From then on, I passed on information to her, using storytellers and rhymes to warn: "The moon is full and the ghosts on the Shenjiang River are cold, and people's hearts are open to disaster..." The Japanese invaders' special high school pursued them like ghosts, and my yin and yang eyes detected Kage Sa Takahiro's lie trap. When a famous actress in Shanghai exploded on stage and the lives of 100,000 spectators hung on the line - my eyes finally saw through the truth of the ultimate evil.