Additional cast members have been announced for the upcoming TV anime The Holy Grail of Eris. The anime is set to premiere on January 8, 2026.
Key Visual:

ADDITIONAL CAST:
Maaya Uchida as Cecilia Adelbide
Natsuki Hanae as Enrique Adelbide
Jun Fukuyama as Dominic Hamsworth



CAST:
Kana Ichinose as Constance Grail
Sayumi Suzushiro as Scarlett Castiel
Yohei Azakami as Randolph Ulster
M.A.O as Lily.
STAFF:
Director: Junpei & Morita
Series composer and scriptwriter: Kenichi Yamamoto
Character designer: Chie Kawaguchi
Animation production: Ashi Production
Yen Press describes the novel as follows:
As a viscount’s daughter, Constance Grail is an ordinary girl whose only notable trait is sincerity, leaving her with no real options when someone steals her fianc and falsely accuses her of petty theft at a ball. While Connie awaits her undeserved punishment, a ghost appears to offer a bargain. The spirit is none other than Scarlett Castiel, a noblewoman once praised for her beauty, lineage, and undeniable charisma-and executed some ten years earlier for her wicked deeds. When Connie accepts this proposal, she is possessed by the infamous spirit who instantly turns the tide on her tormenter, thus saving the hapless girl from her miserable fate. It’s never wise striking a deal without knowing exactly what you’ve committed to, though…or you might find yourself bound to a ghost dead set on revenge against her own enemies!
Source: Comic Natalie
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