My Last Year of Life With My Fiance

After becoming afflicted with a curse that leaves her with only one year left to live, Sophie comes to her fiance Laurence, the prince of the kingdom, asking to break off their engagement so that she can live freely before her life ends. The two had a somewhat cold relationship, but for some reason Laurence is unable to except the idea of breaking of the engagement…? A Love story that begins with the beginning of the end.

Source: MangaPlaza