It tells the story of Ning Chang Yue and Song Yi Qiu's profound bond spanning three thousand years. Through endless time, they have remained together, experiencing the vicissitudes of life, becoming each other's sole guiding light. Entering the modern era, they begin to re-examine the meaning of eternity. In their search for inner peace, a past buried by the long years and a complex, unresolved connection gradually resurface. Faced with the ripples of history and the waves of the present, they must make a final choice regarding love and destiny, completing a dialogue with time and themselves.
