The Incompetent Lady Wants to be a Villainess (Associated Names)

“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…