Kanna is the child of G** and she used divine time traveling abilities to travel back in time and possess her mother's body while her mother was pregnant with her(Kanna) so that she could blackmail/manipulate her ADOPTIVE father into taking care of her. So that means that's she is not the biological daughter of duke Atis and that is how he becomes the ML and while she was doing all those time traveling shenanigans The Korean girl was possessing her body. SO YEAH this whole thing is really messy and Chaotic cuz like how tf can you make the ADOPTED FATHER and ADOPTED DAUGHTER the main couple? Thats just disgusting and uhg.idk anymore but yeah, pls do ur research, this is what I remember from doing mine.