Originally some sort of inner being in Eva Ushiromiya, she became a witch after Eva solved the riddle of the Epitaph. She was recognized as Beatrice's successor, and was extremely cruel. She often used her powers to kill and resurrect people multiple times (usually in brutal ways) before finishing them off. She is sometimes referred to in the text as "The Cruel Witch", and later on, "The Black Witch". A cruel witch summoned from the
Umineko no Naku Koro ni universe by the efforts of the
Circle_of_Jermod. Not finished, but poke her anyway, I'm sure she won't mind killing you dead.
