the holy grail of eris.
2026·tv show·tv-14·7.3/10tmdb · 22
animationmysterysci-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.
where to watch
Not currently streaming on tracked platforms
runtime
0 min/ep
Episodes
Episodes
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cast
who's in it.
7 of 7
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)
videos
trailers.
1 clipOfficial Trailer [Subtitled]
Where to watch The Holy Grail of Eris
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Frequently asked questions
- Where can I watch The Holy Grail of Eris?
- The Holy Grail of Eris isn't currently streaming on any of the services Quewi tracks — check back as availability changes.
- Is The Holy Grail of Eris a movie or a TV series?
- The Holy Grail of Eris is a 2026 Animation TV series.
- 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 a dark conspiracy lurking in the heart of high society, where betrayal, secrets, and power collide.