She's Irene Urzaiz's younger sister. Her parents wanted to hand her over to an Allekant researcher because of her regenerative Strega abilities, but she managed to escape alongside Irene. She eventually ends up at Phoenix Academy, where she basically serves as Irene's personal blood bank—which, given the circumstances of her upbringing, feels like a pretty loaded arrangement.
Content compiled by AnimeList.moe from publicly available sources.
