01/08/2026 - 03/26/2026 Finished
Eris no Seihai (エリスの聖杯)
Also known as: The Holy Grail of Eris
It is common knowledge that nobles will do anything for power; lying, manipulation, and extortion are the usual tactics. However, one family is exempt from this generalization: House Grail, whose main tenets are truth and integrity. The youngest daughter, Constance Grail, is just as moral as the rest of her family, believing in always doing the right thing and helping those in need. However, these ideals do not help her when her fiancé cheats on her with another woman. Framed by his lover in the hope of her downfall, Constance has no one to hear her pleas for justice. Everyone turns a blind eye, save for one—the spirit of the infamous Scarlet Castiel—who possesses Constance and turns the tables on her accuser. However, this aid does not come without a price. Ten years ago, Scarlet was executed for the attempted murder of Princess Cecilia. But this was actually a setup; as blunt and harsh as Scarlet could be, she would never stoop so low as to use poison. She has no idea who orchestrated her incrimination, but Scarlet demands that Constance—as the only one who can see her—help her exact revenge on all those who wronged her!
12
Total episodes
12
Canon episodes
0
Filler episodes
0%
% Filler
Canon episodes · 12 Filler episodes · 0
Every season
Seasons and sequels
Single Season
Currently, Eris no Seihai has no sequels, prequels, or registered spin-offs. This is the complete story available at the moment.
What to watch, what to skip
Watch order: filler vs canon
You're in luck! Eris no Seihai doesn't have a single filler episode: all 12 episodes are canon. It's a faithful adaptation of the original manga, so you can enjoy it from first to last without skipping anything or checking any list of expendable episodes.
The 12 episodes of Eris no Seihai aired in 2026 and follow the story's chronological order. There are no transition episodes, no needless recaps, no arcs invented by the studio: every chapter advances the main plot and develops the characters just as the source material does.
In short, the watch order for Eris no Seihai is as simple as it gets: start at episode 1 and keep going to episode 12 without detours. If you came looking for which Eris no Seihai episodes are filler so you could skip them, the answer is that there aren't any.
Episode by episode
Complete guide by season
12 Episodes
| # | Episodes | Aired | Type |
|---|---|---|---|
| 1 | At the Grand Merillian01/08/2026 | 01/08/2026 | Canon |
| 2 | An Extraordinary Villainess and an Ordinary Girl01/15/2026 | 01/15/2026 | Canon |
| 3 | Their Respective Answers and Beginnings01/22/2026 | 01/22/2026 | Canon |
| 4 | The Silent Ladies' Tea Party01/29/2026 | 01/29/2026 | Canon |
| 5 | And the Cock Crows to Herald the Dawn02/06/2026 | 02/06/2026 | Canon |
| 6 | The Command of the Goddess02/13/2026 | 02/13/2026 | Canon |
| 7 | A Banquet Of Insectivorous Plants02/20/2026 | 02/20/2026 | Canon |
| 8 | Lily Orlamunde02/26/2026 | 02/26/2026 | Canon |
| 9 | The Holy Grail of Eris03/05/2026 | 03/05/2026 | Canon |
| 10 | For the Future03/12/2026 | 03/12/2026 | Canon |
| 11 | Those Who Defy Fate03/19/2026 | 03/19/2026 | Canon |
| 12 | The Final Chapter: At the Grand Merillian03/26/2026 | 03/26/2026 | Canon |
Verified legal platforms
Where to watch Eris no Seihai
All the platforms where you can watch Eris no Seihai legally, with direct links to each service.
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Common questions
Frequently asked questions
How many seasons does Eris no Seihai have?
Eris no Seihai has a total of 1 season. The series is completed. Each season is divided into multiple episodes with stories that advance the main plot of the anime.
How many episodes does Eris no Seihai have?
In total, Eris no Seihai has 12 episodes in its only season. You can consult the complete episodes table to see the breakdown by season.
What is the best order to watch Eris no Seihai?
It is recommended to watch Eris no Seihai in chronological broadcast order. This means starting from season 1 and continuing sequentially to the last season. Check our watch order guide which includes information about filler vs canon episodes for an optimal experience.
Where can I watch Eris no Seihai online?
Eris no Seihai is available on the following streaming platforms: Crunchyroll. Check the platforms section at the top of this page to access where you can watch the anime. Please note that availability may vary depending on your geographic region.
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Is Eris no Seihai a complete anime?
Yes, Eris no Seihai is a completed anime. All seasons have already aired and you can enjoy the series in its entirety without waiting for new episodes.
How much filler does Eris no Seihai have?
No, Eris no Seihai does not have filler episodes. All its episodes are canon and faithfully follow the original manga story, so you can watch all episodes without worrying about skipping anything.
Where can I see Eris no Seihai's score and reviews on MyAnimeList?
You can check the score, reviews, characters and statistics for Eris no Seihai directly on MyAnimeList, the world's largest anime database. There you'll find the community rating, global ranking and opinions from other fans.