In the twenty-sixth year of the Republic of China, Shanghai was covered with mist and rain, and an undercurrent surged behind the glitz. She wears a splendid mask of a famous lady, and the hem of her skirt sweeps away the neon and smoke of a ten-mile foreign market. There are passwords and murderous intentions hidden at her fingertips, but deep down in her heart is a crooked survival manual. He originally wanted to be a low-key and lurking "exquisite agent", but he was born with a humorous physique. During the mission, there were many situations - he mistakenly gave intelligence to the patrolman's pocket watch, used a cheongsam button to crack the password but got his hair messed up, and he frequently laughed when acting opposite his cold partner. The spy war is like a chess game, where life and death are on the line. She uses glamor as her armor and banter as her blade, circling among swords, swords, sounds, and horses, piecing together the truth in absurd encounters, and letting the cold road of spy war stir up a series of ironic joyful songs.