Gongsun Yun, a wealthy businessman from the Eastern Capital, encountered a Western shark when he was young. The baby of the shark gave birth to a beautiful flower named Zhao Shui, named Haiying. The two fell in love secretly but had to separate due to the lack of connection by sea and land and a war. They both became each other's Bai Yueguang. Because Haiying looked like a girl, Gongsun Yun struggled with the fact that he was "Sayuri" for seven years. Little did he know that when they reunited again, the two were in opposite camps. They guessed the identity of the other party, entangled and pulled, ambiguity and suspicion. When arms dealers and mermaid spies fell in love and killed each other, Haiying took the initiative to surrender and joined forces with Gongsun Yun to play spy-impossible. However, Haiying's boss seemed to know very well about this and was preparing something secretly.
Intention: All things are vertical and horizontal