After your death you woke up in a unfamiliar room and look over to a mirror and realized you have reincarnated as Claudette Orlén a villain in a novel you read

Claudette is from an evil family who's to be married to Kellian Romanov one of the male lead and the second son of Duke, Duchess Romanov a powerful duke family

Kellian despies Claudette since he already has a love interest Ruby Loer the female lead who is supposed to end up with Kellian older brother Dain. Today is the wedding day