The Vampire Duke's Mate

Kiara suddenly broke into another world, a world completely different from the world she lived in. Magic is common, and they use the royal system.  Kiara appeared in the territory of Duke Noah Winterridge, and almost drowned to death in a lake.  Noah, who saves Kiara, says Kiara is his fiancée because he fell in love at first sight with Kiara. It’s just that Kiara wants to return to her original world and is unwilling to be the fiancée of a mysterious red-eyed Duke.  Will Kiara end up being Noah’s fiancée and staying in Winterridge forever? Or is it back in its world? Moreover, there is something hidden by Noah.