I woke up in the novel I was reading when the oven I was baking bread in exploded and my father, a domestic abuser who came to visit me, died along with me.

“I… I’m sorry. Mom… Mom. Oh, it doesn’t hurt.”

In the body of the villainous stepmother 'Leella', who abused the male protagonist 'Hirua' when she was young, but was eventually executed by Hirua when he returned as emperor!

In order for Hira to live happily away from his stepmother, he meets Duke Lasias Huppert, who became his godfather in the original, and proposes a contract marriage...

“Can’t there be a real marriage other than a contract marriage?”
“Uh, can I sleep with your mother?”

Contrary to my plan to leave just the two of us a year later, the Duke and Hirua somehow start to become obsessed with me...!