Also known as the Witch of Miracles and greatly resembles Furude Rika from Higurashi no Naku Koro ni. Her name also suggests some connection to Rika's "alter-ego", Frederica Bernkastel (which is hinted when Bernkastel quotes herself saying Rika's trademark "Ni~pa" sound). It is said she resides in a world where concepts such as fate and probability can be visualised. She appears to see Beatrice's game to ease her boredom. She assists the player by giving some hints around the workings of the game. Her "Magic of Miracles" allows her to reset a desperate situation as long as the probability of a favourable situation is not equal to zero. Like Lambdadelta, she is a Voyager: a witch able to move to the territory of other witches without losing her power. She wants Battler to win.