The film tells the story of Zihao living in a seaside town returning to Hong Kong and living a life by the sea. One day, he met the mysterious girl Xiaoyi and began to take care of Xiaoyi's life. The ocean boat where Zihao's father was, the fishing boat returned, but the crew were all missing. Zihao, who experienced the pain of losing his father, walked out of the haze under the care of Xiaoyi, and the two were together. But the good times didn't last long. A mysterious middle-aged man named Lao...