エヴァ・ベアトリーチェ

Eva-Beatrice is a witch who resides within Eva's heart. She represents all of Eva's dark desires from her childhood, including her greed for the Ushiromiya family inheritance; as such, she has the appearance of Eva as a young girl. She first appears in Banquet of the Golden Witch, where she helps Eva solve the riddle of Beatrice's epitaph, leading to her discovery of Kinzou's hidden gold and her inheritance of the Ushiromiya family. As stipulated in the epitaph, Eva inherits the name "Beatrice" and is granted the titles of Golden and Endless Witch, with Lambdadelta as her guardian. [Edited from Wikipedia]