Su Yuzhi, a modern college student, accidentally traveled through time and became an actor in the Republic of China. He fell in love with the noble son Lin Yusheng, but was hindered by the secular world.
In desperation, the two decided to commit suicide for their love, and then traveled back to modern times. They could no longer tell whether this was a dream or reality. Was it Zhuang Zhou dreaming of a butterfly or a butterfly dreaming of Zhuang Zhou?
However, what is more terrifying than death is forgetting. How should he proceed? How will he treat this unforgettable love?