That year, he was eighteen years old and went abroad alone. Three years later, Ye Mei appeared in Shanghai. Ye Mei is his code name and the code name of the action team. Every appearance of Ye Mei represents a loss for the Japanese army. This name frightens the Japanese and makes them extremely angry. They met in a bar. When they first met, she was just a crybaby girl. When they met again, she was already an excellent agent of the Japanese army, but she was also the traitor that the Japanese army was trying so hard to find and their ally. She was the flower of the Japanese army's secret agent, a former lover who could not forget each other. When fate made them meet again, it was a pity that they were destined to be enemies. He took advantage of her love, deceived her again and again, and obtained information again and again. She already knew the truth, but she didn't want to face the reality and couldn't believe that he would lie to her. The entanglement of love and hate between the three people is about the national justice on the one hand, and the personal relationship between their children on the other hand, the moment of life and death...