Series · 2026 · Animation
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.
1 season · 12 episodes

Episode 01
At the Grand Merillian
Constance Grail attends a party only to find her fiancé kissing another woman and herself accused of a crime.

Episode 02
An Extraordinary Villainess and an Ordinary Girl
The ghostly Scarlett demands that Constance repay her help by avenging her death.

Episode 03
Respective Answers and Beginnings
Constance and Scarlett follow a tip to a masked ball with a sinister reputation.

Episode 04
The Silent Ladies' Tea Party
Constance receives a summons from an investigative committee determined to put her on trial.

Episode 05
And the Cock Crows to Herald the Dawn
Constance's carriage suffers a shocking attack and an even more shocking rescue.

Episode 06
The Command of the Goddess
Both Constance and Randolph uncover fresh clues, but Lily's last message remains shrouded in mystery.

Episode 07
A Banquet of Insectivorous Plants
Daeg Gallus contrives to murder Aisha before she can reveal the truth and cast suspicion on Abigail.

Episode 08
Lily Orlamunde
Constance, Scarlett, and Randolph discover a letter that reveals Lily's struggle and the truth she uncovered.

Episode 09
The Holy Grail of Eris
Scarlett possesses Constance to confront her own father.

Episode 10
For the Future
Constance, Scarlett, and Randolph pursue the kidnapped Ulysses and stumble into a shootout.

Episode 11
Those Who Defy Fate
Constance is jailed on her own testimony and given a sentence of death.

Episode 12
The Final Chapter: At the Grand Merillian
As the hour of Constance's execution approaches, Scarlett finds a crucial document and Cecilia makes her move.
based on 24 votes
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.
7 principal cast
The Holy Grail of Eris is available to stream on Flicksy via 6 verified sources, aggregated from publicly available embed providers. The animation has 1 season and 12 total episodes, rated 7.4/10 by 24 viewers.
The Holy Grail of Eris has 1 season with 12 episodes in total.
The Holy Grail of Eris has ended and is no longer in production.
The Holy Grail of Eris airs on MBS, TBS, CBC, Tulip Television, SBC, BSN, tys, NBC, HBC, RKK, i-Television, SBS, IBC, BSS, MRO, OBS, TUF, RSK, TUY, tbc, RKB, KUTV, RBC, UTY, RCC, MRT, ATV, MBC.
The Holy Grail of Eris first aired on January 8, 2026.
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