My Engagement With The Prince Was Cancelled So I Will Stop Pretending To Be a FoolOutaishi ni Konyaku Haki Saretanode, Mou Baka no Furi wa Yameyou to Omoimasu; 王太子に婚約破棄されたので、もうバカのふりはやめようと思います

It is mid-spring in the country of Brior. Olivia, a duchess, pretends to be a fool under the order of her fianc, the crown prince, Alan, and suddenly, he tells her that their engagement has been annulled. Olivia was stunned, but she was even more confused when the second prince, Cyrus, suddenly appeared in front of a large audience and asked her to marry him. This is a romantic love story of a genius daughter who is inexperienced in love and a prince who wants to make his long-time love come true begins!