CinemaOSSeries · 2026 · 1 Season · TV-14
The Holy Grail of Eris
74%(24)IMDbAnimationMysterySci-Fi & Fantasy

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.

Status
Ended
Language
JA
First aired
January 8, 2026
Last aired
March 26, 2026
Seasons
1
Episodes
12
Network
MBSTBSCBC

Season 1

Episodes

No episodes found for this season.

Featuring

Cast & crew

7 credited
Starring
Kana Ichinose

Kana Ichinose

Constance Grail (voice)

Sayumi Suzushiro

Sayumi Suzushiro

Scarlett Castiel (voice)

Yohei Azakami

Yohei Azakami

Randolph Ulster (voices)

Mao Ichimichi

Mao Ichimichi

Lily Orlamunde (voice)

Maaya Uchida

Maaya Uchida

Cecilia Adelbide (voice)

Natsuki Hanae

Natsuki Hanae

Enrique Adelbide (voice)

Jun Fukuyama

Jun Fukuyama

Dominic Harmsworth (voice)

Creative team
Showrunner
Seiji Miyazaki
Produced by
Satoshi Fukao
Hiroto Utsunomiya

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