The famous mermaid in Hangzhou City, Yu Nian, has a cold temperament. Ever since he traveled from sea to land, his indifference has kept people away even for three miles.
But there is only one Si Xing, and he is Qing Yunian.
I don't know since when, the cold-tempered mermaid began to care about Si Xing beside her. When they were on missions together, they even released their skills much faster, until the two of them cooperated more and more tacitly.
Until...
Purpose: Mutual achievement