The Holy Grail of Eris(2026)
The Holy Grail of Eris Synopsis
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 (2026) is a animation, mystery and sci-fi & fantasy series that premiered on January 8, 2026, spanning 1 season and 12 episodes. It stars Kana Ichinose, Sayumi Suzushiro, Yohei Azakami and Mao Ichimichi. Viewers rate it 7.3 out of 10 across 23 ratings.
- First aired:
- 2026-01-08
- Last aired:
- 2026-03-26
- Producers:
- Seiji Miyazaki
The Holy Grail of Eris (2026) Trailer
Watch the official trailer for The Holy Grail of Eris before you start streaming.
The Holy Grail of Eris Cast & Crew
Main cast
Kana Ichinose
as Constance Grail (voice)
Sayumi Suzushiro
as Scarlett Castiel (voice)
Yohei Azakami
as Randolph Ulster (voices)
Mao Ichimichi
as Lily Orlamunde (voice)
Maaya Uchida
as Cecilia Adelbide (voice)
Natsuki Hanae
as Enrique Adelbide (voice)
Jun Fukuyama
as Dominic Harmsworth (voice)
Key crew
Executive produced by Seiji Miyazaki.
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The Holy Grail of Eris Reviews & Ratings
Average viewer score of 7.3/10 from 23 ratings.
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The Holy Grail of Eris – Frequently Asked Questions
Where can I stream The Holy Grail of Eris?
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The Holy Grail of Eris (2026) is available to stream on Crunchyroll and Crunchyroll Amazon Channel. Availability comes from JustWatch data and varies by country.
How many seasons of The Holy Grail of Eris are there?
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The Holy Grail of Eris has 1 season and 12 episodes in total, starting from its premiere on January 8, 2026.
Is The Holy Grail of Eris still running?
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No. The Holy Grail of Eris is marked as ended, with the final episode airing on March 26, 2026.
Who is in the cast of The Holy Grail of Eris?
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The Holy Grail of Eris (2026) stars Kana Ichinose, Sayumi Suzushiro, Yohei Azakami, Mao Ichimichi and Maaya Uchida. The full cast list with character names is available in the cast section of this page.
Is The Holy Grail of Eris any good?
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The Holy Grail of Eris (2026) is rated 7.3 out of 10 from 23 viewer votes, and suits viewers who like animation, mystery and sci-fi & fantasy series. Reviews from viewers are collected further down this page.
Where can I watch the The Holy Grail of Eris trailer?
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The official The Holy Grail of Eris trailer is embedded in the trailer section of this page and plays instantly in your browser.