Becoming A Family With The Duke and His Dear SonBecoming a Family With the Duke and His Dear Son; 남주 아빠가 파혼을 거부한다; Namju Appaga Pahoneul Geobuhanda; The Male Lead's Father Refuses to Break off Our Engagement; The Male Lead's Dad Refuses to Breakup; Отец главного героя отказывается расставаться; 冷徹な公爵様と幸せな家族になる方法; Reitetsu na Koushaku-sama to Shiawase na Kazoku ni Naru Houhou

After her transmigration into the body of a villainess, Ibellia Barnein made it her first goal to call off the contractual marriage that would lead to her untimely death. Try as she might to avoid the cold duke and his son, however, they appear in front of Ibellia time and time again. Can she break her role as the evil stepmother? Or are the novel's events doomed to pass despite her best efforts?