A female returnee named Lu Yi was on her way back to China when her plane collapsed. There were 168 passengers and crew members, 167 of whom were killed and one missing. The missing person is Lu Yi. Lu Yi's boyfriend was heartbroken and married his college classmate 2 years later. Lu Yi was washed away by the sea to a place called Country S, and was rescued by a man named Jiang Chuan. From then on, their lifelong entanglement began.