The heroine who has disappeared for three years and her boyfriend meet her old lover unexpectedly at someone else's wedding. After the hero's extensive exploration, the secret secret from three years ago is revealed. The hero and heroine who have gone through hardships are finally able to stay together. However, life once again shows a ferocious face, and the two people's lives are in trouble again... The manuscript describes the separation and reunion between urban men and women nowadays, explaining the truth that staying together in love is not easy and needs to be cherished.