Migawari Hakushaku Series
身代わり伯爵シリーズ
Mireille grew up with her twin brother Fred, who was adopted by another family as children. After receiving a letter from Fred confessing his love for a married woman, Mireille challenges him to take responsibility. Two months later, a man named Richard arrives, claiming to be Fred’s messenger and demanding Mireille accompany him. When she refuses, he kidnaps her. It is revealed that Fred has fled with the crown prince’s fiancée, and Mireille must now take Fred’s place as the former Count of Bernhardt.