The Ushiromiya family gathers on Rokkenjima, a small island off the coast of Japan, for their annual family conference to discuss how the inheritance of the ailing family head, Kinzo, will be distributed among his children and their spouses. Battler, who has not attended the conference in six years, notices a new painting in the foyer of the mansion. He is told that it is a portrait of the "Golden Witch" Beatrice, who had supposedly given Kinzo all his wealth, and who Kinzo desires to see again. Battler, however, does not believe in witches or magic, and doubts she exists. A typhoon approaches the island, and Maria is left outside by her mother Rosa while searching for a wilted rose George had marked for her in the garden. When it begins to rain, Battler, Jessica, George, and Rosa go outside to find Maria with an umbrella she did not have before, which Maria says Beatrice gave her.

Several years in the past, a young, human Beatrice meets the Golden Witch "Beatrice" preceeding her and becomes her apprentice in magic. Back in 1986, Eva has recurring visions of her younger self claiming to have magic that will allow her to become the family head, which continue to haunt her during the family conference. Maria receives a letter from Beatrice, who is now powerful enough to summon her butler Ronove, and reads it to the guests during dinner. While discussing the contents and writer of the letter amongst themselves, the siblings talk about a rumor about Kinzo's mistress, a woman named Beatrice, who lived in the forest on the island thirty years ago, prompting Battler to theorize that the human Beatrice is still on the island. However, Rosa confesses to her siblings that she had killed Beatrice.