TV-Series
Description
Eva Ushiromiya, Kinzo Ushiromiya's second child and eldest daughter, secured her position within the wealthy Ushiromiya family by ensuring her husband, Hideyoshi Ushiromiya, adopted her surname, thus retaining her status and placing her third in the family hierarchy. She deeply values her affectionate marriage to Hideyoshi and their son, George Ushiromiya. Eva possesses skill in martial arts including Tai-chi, Karate, and Taekwondo, favoring kicks, and is a talented cook.

Eva harbors deep hostility towards her older brother Krauss, the heir, deeming him unworthy due to financial mismanagement. She rallies her younger siblings Rudolf and Rosa against Krauss during family conferences on Rokkenjima, seeking Kinzo's inheritance to counter financial troubles from a hostile buyout targeting Hideyoshi's company. Her ambition drives her to secure the family headship for George, leading her to tightly control his education, career, and romantic life. She disapproves of George's relationship with the servant Shannon, subtly undermining others she deems inferior, including her sister-in-law Natsuhi for lacking Ushiromiya blood and her sister Rosa, whom she psychologically bullied in childhood.

Despite her confident exterior, Eva privately fears disapproval from Hideyoshi and George for her domineering behavior. Resentment fueled by Kinzo dismissing her capabilities due to her gender motivates her to prove her worth. This culminates in her solving the witch's epitaph riddle during the *Banquet of the Golden Witch*, discovering Kinzo's hidden gold. Solving it merges her repressed childhood self with the Golden Witch Beatrice persona, transforming her into the independent witch entity EVA-Beatrice, representing Eva's ruthless ambitions and unhealed trauma. EVA-Beatrice manifests as a teenage Eva wearing a dark lolita-style dress and wielding the One-Winged Eagle staff. She exhibits extreme sadism, torturing and killing Rosa and Maria with surreal methods like crushing them with giant cakes or drowning them in gelatin. She later orchestrates the murders of Rudolf, Kyrie, Hideyoshi (when he attempts to reason with her), Krauss, Natsuhi, George, and others using summoned Furniture like the Chiester Sisters. Horrified by Hideyoshi's death, Eva rejects the witch, causing EVA-Beatrice to operate independently.

Eva survives the 1986 Rokkenjima massacre, inheriting the family fortune and becoming guardian to her niece Ange Ushiromiya, who was absent due to illness. Public suspicion brands Eva the culprit, exacerbating her paranoia and hostility. Initially attempting a loving relationship with Ange, Eva imposes her unrealized ambitions for George onto her, demanding excellence in academics and social conduct. Ange's grief and resentment over her family's deaths strain their relationship. Eva grows increasingly controlling and isolated as business rivals exploit her notoriety, dying in 1998 widely despised and trusting no one.

In meta-world narratives, EVA-Beatrice evolves beyond an antagonist. She guards the truth of Rokkenjima within a "Schrödinger's Cat Box," partly to protect Ange from learning Rudolf and Kyrie participated in the killings. In *Twilight of the Golden Witch*, she demonstrates genuine, albeit harsh, concern for Ange's well-being. During *Dawn of the Golden Witch*'s meta-layer events, George confronts Eva, viewing EVA-Beatrice as his mother's true nature. In the *Requiem of the Golden Witch* arc, Eva participates alongside other deceased Ushiromiya adults in a reconstructed narrative to guide Ange toward accepting life's uncertainties and rejecting self-destructive pursuits of absolute truth.