Is it fate or fate? If you take off the mask of the male god, can you still see a face that is as perfect as you want?
The heroine, who is three years older than the hero, bravely embarks on a cross-border sister-brother relationship, facing family doubts, obstacles from reality, and tests of human nature... How do a pair of lovers move forward in twists and turns in the floating world? Is the three-year appointment a bet or an experience, and is it joy or sorrow in the end?