The Holy Grail of Eris (2026)
A 2026 anime series where a condemned noblewoman and a ghostly aristocrat join forces to unravel a deadly conspiracy hidden within high society.
The Holy Grail of Eris - Series Information
- Original Title: エリスの聖杯
- First Air Year: 2026
- Last Air Year: 2026
- Type: TV Series
- Genres: Animation, Mystery, Sci-Fi, Fantasy
- Content Rating (US): TV-14
- Number of Seasons: 1
- Number of Episodes: 12
- Status: Returning Series
- Original Language: Japanese
- Spoken Languages: Japanese
- First Air Date: January 8, 2026 (United States - TV-14), January 8, 2026 (France - 12)
- Networks: MBS, TBS, CBC, Tulip Television, SBC, BSN, tys, NBC, HBC, RKK
- Alternative Titles: Eris no Seihai (JP)
- Production Companies: Ashi Productions, Good Smile Film, Hakuhodo DY Music & Pictures, Drecom, TBS, LDH JAPAN, BS11, TEICHIKU ENTERTAINMENT, Medicos Entertainment, NewGin
- Production Countries: Japan
The Holy Grail of Eris - Plot
Betrayed by her fiancé's lover and sentenced to public execution, Constance Grail, a plain viscount's daughter known for her honesty, faces death—until a mysterious voice offers salvation. Scarlett Castiel, a noblewoman long thought dead, may be her only hope. Together, these unlikely allies uncover a dark conspiracy lurking in the heart of high society, where betrayal, secrets, and power collide.
The Holy Grail of Eris - Trailer
Watch the official trailer and see the intrigue of high society unfold:
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The Holy Grail of Eris - Cast & Crew
Main Cast
- Kana Ichinose
- Sayumi Suzushiro
- Yohei Azakami
- Mao Ichimichi
- Maaya Uchida
- Natsuki Hanae
- Jun Fukuyama
Executive Producers
- Seiji Miyazaki
The Holy Grail of Eris - FAQs
Where can you stream The Holy Grail of Eris?
The Holy Grail of Eris is available to stream on Crunchyroll and the Crunchyroll Amazon Channel, both offering the series under a flat-rate subscription. You can also check JustWatch to compare all current viewing options available in your region.
Is The Holy Grail of Eris based on a light novel?
Yes. The Holy Grail of Eris is adapted from a Japanese light novel series. The source material blends villainess-isekai tropes with mystery and supernatural elements, following Constance Grail and the ghost of Scarlett Castiel as they unravel a high-society conspiracy.
Who voices Constance and Scarlett in the anime?
Constance Grail is voiced by Kana Ichinose, while Scarlett Castiel is voiced by Sayumi Suzushiro. The two lead performances anchor the series' central dynamic between the living protagonist and her ghostly noble ally.
What is The Holy Grail of Eris about?
The series follows Constance Grail, a viscount's daughter betrayed by her fiancé and condemned to execution, who is saved by the ghost of the notorious noblewoman Scarlett Castiel. Together they investigate a shadowy conspiracy woven through aristocratic society, uncovering secrets of power and betrayal.
When did The Holy Grail of Eris first air?
The Holy Grail of Eris premiered on January 8, 2026. The series began its broadcast run in Japan across multiple networks including MBS and TBS, with international streaming availability through Crunchyroll launching around the same time.
How many episodes does Season 1 have?
Season 1 of The Holy Grail of Eris consists of 12 episodes. The season covers the central mystery arc involving Constance Grail and the ghost of Scarlett Castiel as they navigate the dangers and deceptions of aristocratic high society.
What is the content rating for The Holy Grail of Eris?
The Holy Grail of Eris carries a TV-14 content rating in the United States, indicating the series contains material that may be unsuitable for children under 14. Viewers can expect mature themes including betrayal, conspiracy, and supernatural elements.
What genre is The Holy Grail of Eris?
The Holy Grail of Eris blends Animation, Mystery, and Fantasy genres. It draws on the popular villainess subgenre of anime while incorporating supernatural mystery elements, making it appealing to fans of aristocratic intrigue, ghost stories, and light novel adaptations.
More About The Holy Grail of Eris
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