My dreamy older sister broke off her engagement and ended up marrying her former fiancé.

At the same time her older sister broke off her engagement, Meredith found herself unwillingly engaged to Savion, who had been her sister's fiancé. She couldn't immediately think of Savion, whom she had considered her future brother-in-law, as her husband, and she grew melancholy thinking that society would surely say the younger sister had stolen her older sister's fiancé. Her sister had broken off the engagement believing she could marry the Second Prince. However, the Second Prince already has a fiancée. Her sister claims he will break his engagement and choose her, but Meredith couldn't believe that her dreamy sister's words would come true. And then something unexpected happens at the evening party where the princess is welcomed.