Duke’s daughter Seraphina is scorned by her fiancé, the crown prince, as a failure and branded by those around her as the villainess who bullies the saint. Shunned and heartbroken, she closes her heart to everyone, for no one believes in her. To make matters worse, one day the saint suddenly collapses before her eyes, and Seraphina is accused of poisoning her. Facing execution for a crime that she didn’t commit, she’s saved at the last moment by a witch and begins a new life under her care. Just as she was starting to enjoy peaceful days in the witch’s home, a gravely wounded knight is brought to them— A healing fantasy romance between a gentle lady with the power to heal and a sincere knight.

Mia grew up a commoner, but after her parents died, she and her younger brother were taken in by their uncle, an earl, and spent their days as a countess. One day, however, Mia is chosen as the bride-to-be of the crown prince Albert, which brings her mother-in-law and sister-in-law Isabelle into disrepute. Furthermore, Isabelle orders Mia to play the role of a villainess and intentionally break off the engagement...? This is the start of a love fantasy between the dauphin and a (pretending) villainess who are not always straightforward!

https://www.cmoa.jp/title/288051/