Yang Luoli and Sheng Suhang were originally bound by marriage contracts between two major families. They had known each other since childhood and had a tacit understanding. They were more similar to family ties than love. However, the appearance of Wen Xi and Li Fujing gave their originally peaceful lives a different feeling. Should they choose the past or the present? And what kind of love and miss will happen to Sheng Mo, Sheng Mo's sister who has withdrawn from the voyage? The path of youth is getting farther and farther away just by the choice of one thought. . . .