Isekai'd into the arms of a Yandere Duke

The story follows the player, who awakens in a world different from the one they know, and yet is familiar. They come face to face with their favorite character from an old medieval fantasy otome game (tentatively named Rosalind's Lie) - The Duke Lucien 'Lucy' Lockhart, who had gained self-awareness after the many, many replays the player has gone through his route seeking comfort.

The player's memories of ending up in this situation are fuzzy, but they are very much in the world of the otome game, made reality. While they try to find their bearings in this new place, they have to juggle with the Duke's clear affections for them while figuring out whether they want to stay, or if they want to go back home, at the risk of setting off the man who has something to do with their mysterious arrival in the first place.