Your Highnesses, You Have the Wrong Object of Obsession

I possessed a novel called <The Owner of the Name>, a multi-male lead, single female lead story. The core of the story is the 'Name' engraved on the body of the main female lead, Leoniel. However, unlike other Names, what gets engraved is not a given name but a surname (family name). The novel <The Owner of the Name> was a palace intrigue drama of tangled passions, jealousy, betrayal, and conspiracies, centered around the four princes who bore that surname. And in that world, I possessed none other than the villainess, Johannes, who had the same Name engraved as the main female lead. He was a character harboring a very important secret in his body, who in the original work, out of jealo...