Yumemi no Koushakureijou wa Konjakuhaki wo Goshou desuThe Dreaming Duchess Wants to Break off Her Engagement; The Dreaming Duke's Daughter Wishes for Her Engagement to Be Broken; 夢見の公爵令嬢は婚約破棄をご所望です

A saintly maiden and a yandere prince's misunderstanding-filled love fantasy! "As of today, I'm breaking off our engagement!" One day, Duchess Female dreams that her fiancé, Prince Edgar, will break off their engagement. She is known as the "Dream-Seeing Saint," and her dreams tend to come true in the near future. After much deliberation, Female decides to step aside and make the prince hate her to fulfill his "true love." But the more she tries to make him hate her, the closer he gets...?! A thrilling, misunderstanding-filled love fantasy begins! https://www.cmoa.jp/title/1101378233/