“This is a contract marriage.” “Yes, thank you!” Averill, a girl who was called a genius in her childhood but was now mistreated as “incompetent”, got married off as a “substitute” in place of her step-sister to an “old, lustful duke”. What awaited her at her destination was a handsome young man who was the complete opposite of what she had heard. But of course, the people around her who believed Averill to be a villainess treated her badly. However, Averill, who was accustomed to being oppressed and easygoing, was not discouraged at all. She obediently demonstrated her inherent insensitivity and ability as a “villainess (*compared to herself)”, and turned them around into her allies. On the other hand, the Duke quickly saw through that Avril was neither incompetent nor a villainess. He asked, “Averill, who called you an incompetent woman? I won’t forgive them.” “…Uh, that…?” This is a story about a heroine who lived a strong life at her own pace even though her family didn’t love her, but in a new place, she was cherished and lived a happy life.