I was broken off from my engagement as a villainous lady, and exiled from the country on the false charge of bullying my sister—has it really been 20 years now? But not a single day has passed without me remembering what happened back then... Do you know what karma is? My former fiancé and that mistress of his—my own sister.

Nearly twenty years had passed since I was falsely accused of bullying my younger sister, had my engagement broken off, and was exiled from the country. My sister took my place and is now the queen. I heard that the crown prince, her son, has begun his search for a fiancée in a neighboring country, but it's been difficult because the crown prince has a rather poor reputation, and people are reluctant to have the queen—his mother with a terrible personality—as their mother-in-law. And now, an inquiry has finally come to our country asking if there are any noble young ladies suitable to be his fiancée...