Undercurrent of Flowers

In 1939, when Shanghai fell, Shen Zhiwei discovered on his wedding night that his fiancé Gu Mingyuan had colluded with the Japanese army to smuggle poison gas bombs, broke off his pearl chain and escaped from the marriage, and met Fu Chengyu, a "sick drug dealer". He covered her body while coughing, and the silver medicine box hid the secret message of the underground party "Nightingale". Under the appearance of weakness, he was an ace agent who could defeat the enemy with his bare hands. The two teamed up to deliver intelligence and blow up the arsenal. Shen Zhiwei transformed from a delicate daughter into an intelligence agent codenamed "White Butterfly". Fu Chengyu also took off his disguise to protect her with his life. Gu Mingyuan made a crazy counterattack, kidnapping and setting up ambushes, but he couldn't stop the two of them from working together to break the situation. From the Morse code at Paramount to the life-and-death battle at Jiangwan Airport, they kept their original aspirations and finally got married under the parasol tree on the Victory Day of the Anti-Japanese War - after the undercurrent, the flowers finally bloomed.