Instead of my sister-in-law, I will be engaged to the son of a Marquis who is said to have only one year to live.

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"I'm told by the doctor that I have a year to live, so I don't think I can live until I get married." One day, Edith, an adopted daughter of Count Oakridge's family, received an offer of marriage with Lionel, the eldest son of the family of Marquis Granvel. Originally, this offer of marriage was offered to Adria, the sister-in-law of Edith, but when Adria saw Lionel, who had little life expectancy and looked sickly, Adria appealed to his parents and made Edith a partner of marriage for himself. Neither his sister-in-law Adria nor his uncle-in-law believe in Lionel's recovery. Only Edith believes in edith believes in the recovery of Lionel, who has a sincere personality, and starts to support him with dedication as his fiance. After that, he gradually recovers miraculously and begins to regain his original beauty and start to love Edith? The happy end love story of two people that begins with one life expectancy announcement starts here!