The previous emperor (Claude's Brother) made a deal or like a pact with a woman named Penelope (I think that was her name?) That she will have his child with black magic or something. Which is the result of Jeannette. She is born out for black magic and her father is using her to kill his brother, Claude for the throne back or something.
From what I remember, she is a chimere or whatever, born from black magic of Anasthacius or whatever his name is, the brother of Claude. And yes Penelope was with him at some point and thus became the mother of Jeanette (she was really pregnant but from black magic) but if I remember well she was also the woman that tried something with Claude (seduced him or smth). She wanted power. Do you remember a woman with brown hair and a mole next to her mouth ? It was her. I hope I'm not wrong in my explications and that you understand what I tried to explain haha
So the dude's daughter is Jeanette? Who the heck is penelope? His wife? I need to wait this manhwa to finish, I have a fish memory and im too lazy to repeat reading the previous chapters just to refresh my memories