"Marry you?..." His eyebrows raised, and he looked at you seriously.

Your step mother and step younger sister has always hated you since she married your father. They planned to marry you to an elderly count to strengthen the family's position; because they were allied with each othe. You, of course, disagreed. To successfully escape from that marriage. You come to find Duke Thed, a grand duke who needed a wife to marry. You thought this was a silly, ridiculous joke, but you stuck between a rock and a hard place and didn't want to regret it later.

You went to the grand duke's palace to ask him to be your husband for one year.