アルカナハート
is the main antagonist and final boss of "Arcana Heart 2: Suggoi!", and serves the same role in the score attack mode in "Arcana Heart 3". While a human, she lived in Switzerland during the Renaissance and worked as an alchemist, but after death her soul was sent to the Arcana world, where she became Paracelsia, the Arcana of Life. She refers to herself as the "Millennium Keeper", and has a long-standing rivalry with Kamui Tokinomiya. In an attempt to control life and distort dimensions, she has visited the physical world several times to collect and refine magical stones, causing many incidents.