Well, it often involves a complex web of relationships. There's usually a strong - willed protagonist who finds herself in a situation where she has to either stand up to the duke or conform to his demands. It might include elements of romance, power struggles, and a journey of self - discovery for the main character.
The main character is likely a woman who dares to disobey the duke. And of course, the duke himself is a main character. There may also be some side characters like servants, friends of the main character, or other nobles who play important roles in the story.
I'm not entirely sure as I haven't read it in detail, but generally, light novels often involve complex relationships, political intrigue, and personal growth. It might be about a character who has to make difficult choices regarding disobeying the duke and the consequences that follow.
In a light novel like this, there could be a female lead who is in a difficult position regarding the duke. She might be a strong - willed character with her own beliefs and values. The duke, on the other hand, could be portrayed as either a tyrant or a complex figure with his own reasons for his actions. There may also be a male lead who supports the female lead in her decision to disobey, perhaps a knight or another noble who is in love with her and stands by her side through the turmoil.
There could be multiple explanations. Maybe it's to protect someone or achieve a greater goal. Or perhaps there's a misunderstanding that's led him to act this way.
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.