Due to a strange deal made ages ago, Emilia Bern, a commoner, is married off to a noble family's wealthy heir. On paper, the deal sounds like a dream. In practice, however, it's only afforded Emilia misfortune and the ire of her peers. Convinced that only despair awaits her in the future, Emilia reunites with her previously cold fiance and is surprised to see his demeanor has completely shifted.