Zuo Hao (Zhang Ziwen) lives in the prosperous metropolis of Shanghai, with good economic conditions and an enviable job. However, under the glamorous surface, Zuo Hao is constantly tortured by deep frustration and emptiness in his heart. At the same time, his best friend unfortunately died in an accident, which was a huge blow to Zuo Hao. He decided to put his work aside temporarily and embark on a journey to find self-liberation. Vivian (Ren Rongxuan) is an editor of a travel website. Her daily job is to travel between various tourist attractions and write travel notes. In fact, this kind of life of being homeless and ready to go at any time has already made Vivian feel tired and uneasy. Her body and mind are eager to find a place to rest. Fate makes this pair of men and women with different personalities meet by the blue sea.