She's best known as the lover who gave up everything for Romero—literally turning her back on her privileged life as a nobleman's daughter to be with him. To make it work, she left behind the world of light entirely, choosing instead to live out her days in his shadow. It's the kind of romantic sacrifice that defines her character: she had everything a person of her station could want, but none of it mattered once she fell for him.
Content compiled by AnimeList.moe from publicly available sources.