If you could go back in time, what would you choose to change? "
Lin Xia, an ordinary senior student, is overwhelmed by repeated failures in life. Until an unexpected car accident gave her the ability to "rewind time" - she could only go back 24 hours in the past at a time. At first, she thought it was a joke from God, until she discovered that this ability was closely related to a mysterious man, Gu Shiyan.
Gu Shiyan, an upstart in the business world, looks cold but hides unknown pain in his heart. His sister Gu Shiwei died accidentally in an experiment, and he has been looking for a way to resurrect her. Lin Xia's appearance gave him hope, but it also made him fall into a deeper struggle.
The two gradually got closer while going back in time, uncovering each other's secrets and discovering the huge conspiracy hidden behind time. Lu Chen, Gu Shiyan's business rival, is ambitious and tries to use Lin Xia's ability to change the business landscape, even at the cost of hurting her.
When Lin Xia discovers the truth about time regression - every use consumes her vitality, she faces a difficult choice: Should she use her last ability to save Shi Wei at the cost of disappearing herself?
"If I could go back in time, I would choose to meet you, even if the ending is destined to be separation. "
Intention: Cherish the present and face choices bravely.