Misuko kakoi

Duchess Evelyn learns of her fiancé Bernard’s betrayal—he plans to keep a commoner as his mistress. Outraged yet smiling behind composure, Evelyn decides to enact her revenge. With the support of the crown prince Frederick, who dotes on her, she orchestrates a calculated downfall of Bernard and the mistress. But in the end, what is the true love that Evelyn will finally attain? https://www.cmoa.jp/title/310900/