The Holy Grail of Eris anime showed a new trailer, revealing the 2026 premiere date at Anime Expo 2025. Studio Ashi Productions is animating the series, which was first announced in September 2024.
You can watch the new trailer below.
RECAP: All the Major Anime Expo 2025 Announcements
The main voice cast includes:
- Sayumi Suzushiro as Scarlett Castiel
- Kana Ichinose as Constance “Connie” Grail
- Yohei Azakami as Randolph Ulster
- M・A・O as Lily Aulamunde
Morita to Jumpei is the director of the anime, Kenichi Yamashita is the series composition and scriptwriter, and Chie Kawaguchi is the character designer.
The Holy Grail of Eris is a Japanese light novel series written by Kujira Tokiwa and illustrated by Yuunagi. A manga adaptation, illustrated by Hinase Momoyama, has been serialized online through Square Enix’s Manga Up! website since November 2019.
Yen Press is licensing the light novel in English and describes the story:
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: The Holy Grail of Eris Official Website, Anime Expo 2025
© 2024 Kujira Tokiwa / Drecom / Holy Grail of Eris Production Committee
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