Living as the Villain’s Stepmother

I woke up in the novel I was reading when the oven that I was baking Madeleine in exploded, killing me and my abusive father. “I…I’m sorry. Mo…Mother. I-t doesn’t hurt.” In the body of the villainous stepmother ‘Ruella’, who abused the male protagonist ‘Hirua’ when he was a child but was eventually executed by Hirua when he returned as an emperor! In order for Hirua to live happily away from his stepmother’s arms, she meets Duke ‘Lasias Wieffer’, who was his godfather in the original novel, and offers a contract marriage… “Can’t we have a real marriage, not just a contract marriage?” “Ca-can I sleep with you, mother?” Contrary to my plan to leave them alone after a year, somehow the Duke and Hirua became obsessed with me..!