After her fiancé was stolen by her younger sister, count's daughter Lisette was forced to marry, almost as if to get rid of a nemesis. Her partner was Albert, the younger brother of the king, known as the "misanthropic Duke in the Iron Mask." Immediately after the wedding, her husband told her, "I can't love you," and stood her up on their wedding night. Then, a black cat appeared before her?! Lisette, who loves cats, began spending time with the black cat that visited her every night, but as she became closer to the cat, for some reason, her husband's attitude began to change as well... A fluffy newlywed romantic fantasy about a troubled Duke and his figurehead wife ♡