Cinderella ga Kekkon shita no de Ijiwaru na Gishi wa Cool ni Sa......remasen!?Cinderella ga Kekkon shita no de Ijiwaru na Gishi wa Cool ni Sa... remasen?!; シンデレラが結婚したので意地悪な義姉はクールに去… れません！？; Since Cinderella Got Married, the Mean Stepsister Can't Just Walk Away Coolly?!; Cinderella Got Married, so the Evil Stepsister Can Chill out... Right?

I used to be a driven, hard-working person. And now, in this life, I live as Cinderella's stepsister Petra. Cinderella is a beauty, but also very lazy and sloppy. In the hopes of bringing her and the prince together in marriage just like the fairytale goes, my other sister and I did our best to educate Cinderella. People witnessing mistook our strict ways, and the rumors of "the evil stepsisters" spread around... However, despite the obstacles, we successfully saw Cinderella married off to the prince! Happily ever after!... Or so I thought until I met a mysterious gentleman named Eric. He approached me at the ball just so he could rudely accuse me of bullying Cinderella out of jealousy! Well, he chose the wrong person to pick at because this "evil stepsister" isn't going down without a fight!