Zhou Yuan left because of a car accident. By chance, Jiang Heng discovered that he could jump in time and space. He kept traveling through time and space, trying to save Zhou Yuan, but found that he was a supporting role beside Zhou Yuan, and no matter how many times he tried, he could not change Zhou Yuan's fate. Life is only once, and they love each other only once.
Concept: It turns out that two people who really love each other cannot be together.