義妹に押し付けられた嫁ぎ先は、呪われた公爵閣下でした (Associated Names)

“I will never ever marry that monstrous duke!! That’s right! Big sister, if it’s you, you’ll be a good match for him! In return, I will take my big sister’s fiancé as mine!” “ And you, since when did you even think someone like me would actually want to be engaged with someone like you?…