The Villainess is a Kindhearted Person

Duchess's daughter Calendula Yushuan. She bullies her fiancé's lover, is obsessed with a beautiful knight, and bullies her half-sister. She is a troublesome young lady. Although she is disliked, she doesn't do it out of choice. There was a reason. A selfish reason. She did not refuse and accepted it. Today too, she does her best to play the role of a villain.