Beatrice is the main antagonist and protagonist of the Umineko no Naku Koro ni series. She clashes with Battler Ushiromiya, trying to convince him that witches are real and that she used magic to execute a series of bizarre murders on the island of Rokkenjima. She has lived for over a thousand years. She has already strayed from the domain of humans, and it is said that as demons do, she appears when summoned by a human and lends him her power for a compensation of equivalent value. The things she likes are black tea and ice cream. The things she hates are boredom and people who deny her.