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The Holy Grail of Eris

2026Animation · Mystery · Sci-Fi & Fantasy

First aired

January 8, 2026

7.4

TMDB Score

74% match · 24 votes

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S01 · E09

The Holy Grail of Eris

Season 1 · Mar 5, 2026 · 23m

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E01▶

At the Grand Merillian

Jan 8, 2026 · 23m

E02▶

An Extraordinary Villainess and an Ordinary Girl

Jan 15, 2026 · 23m

E03▶

Respective Answers and Beginnings

Jan 22, 2026 · 23m

E04▶

The Silent Ladies' Tea Party

Jan 29, 2026 · 23m

E05▶

And the Cock Crows to Herald the Dawn

Feb 5, 2026 · 23m

E06▶

The Command of the Goddess

Feb 12, 2026 · 23m

E07▶

A Banquet of Insectivorous Plants

Feb 19, 2026 · 24m

E08▶

Lily Orlamunde

Feb 26, 2026 · 23m

E09Playing

The Holy Grail of Eris

Mar 5, 2026 · 23m

E10▶

For the Future

Mar 12, 2026 · 23m

E11▶

Those Who Defy Fate

Mar 19, 2026 · 23m

E12▶

The Final Chapter: At the Grand Merillian

Mar 26, 2026 · 23m

Scarlett possesses Constance to confront her own father.

About the Series

AnimationMysterySci-Fi & Fantasy

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.

First aired: January 8, 2026
Last aired: March 26, 2026
Seasons: 1 season · 12 episodes
Status: Ended
Original language: Japanese
Networks: MBS, TBS, CBC