I'm not entirely sure as I haven't read this specific novel in detail. But generally, it might be about a character named Raeliana who somehow finds herself at the duke's mansion. It could involve her adventures, relationships, and perhaps some sort of mystery or drama within the mansion's walls.
Since I haven't read it thoroughly, I can only assume that Raeliana is one of the main characters as she is in the title. And of course, the duke who owns the mansion is likely to be a main character too.
Raeliana ended up at the Duke's in the novel possibly because of a combination of factors. It could be a family connection, a quest for safety, or even a hidden agenda. The story's intricacies likely reveal the full explanation.
The reason Raeliana ended up in the manga might be a combination of factors. It could be that the story had a unique appeal that lent itself well to the visual and narrative style of manga. Or perhaps there was a demand from fans or publishers to bring her story to this format.
Raeliana ended up at the Duke's Mansion due to a combination of misunderstandings, coincidences, and a bit of destiny. It's a story full of surprises and turns that brought her there.
Raeliana ended up at the Duke's Mansion due to a combination of factors. A mysterious letter, a chance encounter, and a need for refuge all played a part.