In the 20 years witnessed by time, the story of Ding Jun and Wang Yu slowly unfolded like an exquisite picture scroll. Twenty years ago, the hourglass of time engraved the changes in their lives in their memories. After 20 years of longing and begging day and night, by chance, they both returned to 20 years ago and met. However, the passage of time also makes them face many tests. On this road where emotion and reality are intertwined, Ding Jun and Wang Yu not only have to face the tacit understanding and expectations between each other, but also face the various challenges that life brings. Behind every warm moment are deep thoughts and unfinished visions. After 20 years, what kind of result will they face...