The Holy Grail of Eris(2026)

Name: The Holy Grail of Eris
Genre: Animation, Mystery, Sci-Fi & Fantasy
Released: 2026-01-08
Rating: 7.1
Cast: Kana Ichinose, Sayumi Suzushiro, Yohei Azakami, Mao Ichimichi, Maaya Uchida

★ 7.1(21)12 episodesEnded

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.

First aired:: 2026-01-08
Country:: JP
Network:: 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

Episodes

Season 1(12)

1. At the Grand Merillian
★ 6.7
2026-01-08 · 23m
Constance Grail attends a party only to find her fiancé kissing another woman and herself accused of a crime.
2. An Extraordinary Villainess and an Ordinary Girl
★ 7.0
2026-01-15 · 23m
The ghostly Scarlett demands that Constance repay her help by avenging her death.
3. Respective Answers and Beginnings
★ 7.0
2026-01-22 · 23m
Constance and Scarlett follow a tip to a masked ball with a sinister reputation.
4. The Silent Ladies' Tea Party
★ 6.7
2026-01-29 · 23m
Constance receives a summons from an investigative committee determined to put her on trial.
5. And the Cock Crows to Herald the Dawn
★ 7.0
2026-02-05 · 23m
Constance's carriage suffers a shocking attack and an even more shocking rescue.
6. The Command of the Goddess
★ 7.0
2026-02-12 · 23m
Both Constance and Randolph uncover fresh clues, but Lily's last message remains shrouded in mystery.
7. A Banquet of Insectivorous Plants
★ 6.0
2026-02-19 · 24m
Daeg Gallus contrives to murder Aisha before she can reveal the truth and cast suspicion on Abigail.
8. Lily Orlamunde
★ 6.3
2026-02-26 · 23m
Constance, Scarlett, and Randolph discover a letter that reveals Lily's struggle and the truth she uncovered.
9. The Holy Grail of Eris
★ 7.3
2026-03-05 · 23m
Scarlett possesses Constance to confront her own father.
10. For the Future
★ 7.3
2026-03-12 · 23m
Constance, Scarlett, and Randolph pursue the kidnapped Ulysses and stumble into a shootout.
11. Those Who Defy Fate
★ 6.7
2026-03-19 · 23m
Constance is jailed on her own testimony and given a sentence of death.
12. The Final Chapter: At the Grand Merillian
★ 7.7
2026-03-26 · 23m
As the hour of Constance's execution approaches, Scarlett finds a crucial document and Cecilia makes her move.