I was condemned as a villainous young lady, and when I thought I would become the second wife of a margrave grandfather, I was instead cherished like his granddaughter.

This heroine is actually not a villain at all, but rather an excessively virtuous young lady. The comeuppance is only added in the slightest. Josette, the youngest daughter of the Duke's family, senses a crisis as the holy woman Saori captivates the noble princes, and she continues to lecture Saori day after day. Though her points were valid, Josette is condemned by Saori and the noble princes around her. And so Saori successfully marries Josette's former fiancé, the Crown Prince, while Josette, heartbroken, is taken as the second wife of a certain margrave on the frontier. I am also posting this on Alphapolis.