This drama tells the story of Shen Xingchen, who wakes up after a car accident to find his soul in the body of his twin brother, He Yuchuan, three years into the future. Assuming a false identity, he faces countless tests from his former lover, Jiang Muyi, and eventually joins forces with her to uncover the truth behind the accident, expose the conspiracy behind it, and ultimately embrace a new beginning in their love story.