Could be that there's some sort of connection or misunderstanding. Maybe she needed a place to stay or was looking for someone and ended up there by accident.
It could be that the duke had something she needed or that she was sent on a mission to interact with him. Maybe it was to uncover a secret or gain important information.
I'm not sure specifically as I haven't read this particular manhwa novel. It could be about a female character who has a divine mission or origin. Maybe she has special powers given by God to save the world or change the fate of certain people.
Definitely not. Manhwa comes from Korea. It has unique features that set it apart from Chinese comic works in terms of art style, storylines, and cultural influences.