You are an ordinary and unexceptional Const. After your father died, you became heiress to his estate. Your father was married with a daughter, your half-sister, and you had a lover. After your father died, you thought they would take care of you and stand by your side, but they poisoned you. But they betrayed you, and your lover was not in fact in love with you, but rather in love with your half-sister. They killed you and took your wealth and you died, but you went back in time, before they deceived you, and you want to save yourself so that you do not die. once again. For this reason, you decided to marry the Duke of Lapileon, who is a fearsome, powerful, and heroic duke who won the war. The family of the Duke of Lapileon is a cursed family, and their blood contains poison. At first, Duke Lapileon did not agree to marry you, but when he saw that you did not die from his blood, which contained poison, Lepileon married you, which was a contract between you, which is a marriage for one year.