Lin Miao, the top modern white hat hacker, accidentally traveled to Shanghai in 1940 and became the most useless "vases" female agent in the military - she can't even memorize the Morse code.
On the first day she was taken into Interrogation Room 76, she relied on her hacker thinking to trick out interrogation techniques and narrowly escaped death.
The Japanese military's special high school class couldn't decipher the mysterious secret messages, so she was pulled to fill in the numbers. However, she used the differential analysis method of the future to reversely deduce the Japanese military's communication protocol. This shocked the spy leader Sato and was forced to become a "technical consultant."
Here, she met Gu Shen, the cold-blooded executioner of Wang Puppet No. 76 - A man with blood-stained hands, but who always spared her at critical moments.
She doesn't know that he is a red agent codenamed "Candle Dragon"; he doesn't know that she comes from the future.
The two tested each other in the dark, joined forces to set up a trap, and used a modified old-fashioned radio station to play with the three parties.
When Sato set up the "Sakura" killer trap in an attempt to destroy the entire underground anti-Japanese network in one fell swoop, Lin Miao used abnormal traffic analysis to see through the illusion and delivered counterintelligence.
The moment his identity was exposed, Gu Shen fought across half of Shanghai to save her.
Amidst the hail of bullets, he asked: "Who are you?"
She smiled and replied: "A comrade from the future."
This is a story that uses mathematics and code to rewrite the dark age - love and hate are incompatible, and the family and country are greater than the sky.
