The Holy Grail of Eris poster

The Holy Grail of Eris (2026)

TV Series ★ 7.4

Animation Mystery Sci-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.

▶ Play

Episodes

Quick facts

Released
January 8, 2026
Rating
TV-14
IMDb
tt38647635
Country
Language
Studio
Ashi Productions, Good Smile Film, , Drecom

Themes

Cast

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)

More Like This

More like The Holy Grail of Eris ›
BLOOD-C 2011 ★ 7.9
The Case Study of Vanitas 2021 ★ 8.3
Mieruko-chan 2021 ★ 8.1
High School DxD 2012 ★ 8.5
Hell Girl 2005 ★ 8.2
The Testament of Sister New Devil 2015 ★ 7.9
Shakugan no Shana 2005 ★ 7.4
The Garden of Sinners: The Hollow Shrine 2008 ★ 6.8
Fate/Apocrypha 2017 ★ 7.4
My Next Life as a Villainess: All Routes Lead to Doom! 2020 ★ 7.5
Fate/Zero 2011 ★ 8.0
Noblesse 2020 ★ 8.4

Also Worth Watching

Slayers 1995
Occultic;Nine 2016
Black Clover 2017
An Observation Log of My Fiancée Who Calls Herself a Villainess 2026
The Most Notorious "Talker" Runs the World's Greatest Clan 2024
Easygoing Territory Defense by the Optimistic Lord 2026
Gankutsuou 2004
Rozen Maiden 2004
Farming Life in Another World 2023
The "Hentai" Prince and the Stony Cat 2013
Tearmoon Empire 2023
The Dark History of the Reincarnated Villainess 2025
The Witch and the Beast 2024
Nina the Starry Bride 2024
The Gorilla God's Go-To Girl 2025
Reincarnated as a Sword 2022
Witch Hat Atelier 2026
The Foolish Angel Dances with the Devil 2024

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 a dark conspiracy lurking in the heart of high society, where betrayal, secrets, and power collide.
Who stars in The Holy Grail of Eris?
The Holy Grail of Eris stars Kana Ichinose, Sayumi Suzushiro, Yohei Azakami, Mao Ichimichi.
When was The Holy Grail of Eris released?
The Holy Grail of Eris is a 2026 animation, mystery, sci-fi & fantasy series.
Where can I watch The Holy Grail of Eris?
You can watch The Holy Grail of Eris with full details, cast, and streaming options on 3eyedraven.