

The Holy Grail of Eris
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.
Seasons & Episodes
Season 1
2026Cast

Kana Ichinose
Constance Grail (voice)

Sayumi Suzushiro
Scarlett Castiel (voice)

Yohei Azakami
Randolph Ulster (voices)

Mao Ichimichi
Lily Orlamunde (voice)

Maaya Uchida
Cecilia Adelbide (voice)

Natsuki Hanae
Enrique Adelbide (voice)

Jun Fukuyama
Dominic Harmsworth (voice)
Tatsuro Watarai
Yuki Takada
Youjin Fukushima
Ayana Tanabe
Keiko Tokuda
Where to Watch
Frequently Asked Questions
What is The Holy Grail of Eris about?
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…
How many seasons does The Holy Grail of Eris have?
The Holy Grail of Eris has 1 season with a total of 12 episodes.
Where can I watch The Holy Grail of Eris?
The Holy Grail of Eris is available to stream on Crunchyroll.
Who stars in The Holy Grail of Eris?
The Holy Grail of Eris stars Kana Ichinose, Sayumi Suzushiro, Yohei Azakami, Mao Ichimichi, Maaya Uchida.
When did The Holy Grail of Eris first release?
The Holy Grail of Eris first released in 2026.
What language is The Holy Grail of Eris in?
The Holy Grail of Eris is originally in JA.
Is The Holy Grail of Eris still ongoing or completed?
The current status of The Holy Grail of Eris is: Ended.
What genre is The Holy Grail of Eris?
The Holy Grail of Eris is a Sci-Fi, Animation, Mystery series.