The Holy Grail of Eris (2026) - TV Series backdrop image

The Holy Grail of Eris

2026
1 Season
12 Episodes
7.3/10
Ended

Genres

AnimationMysterySci-Fi & Fantasy

Overview

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.

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Episodes

Select Season

Season 1 Episodes

Watch The Holy Grail of Eris (2026) Online Free

Stream all 1 season of The Holy Grail of Eris (2026) for free in high quality on BingeBox, a Animation, Mystery, Sci-Fi & Fantasy series. 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. No subscription or registration is required, simply choose an episode and start watching.

Frequently Asked Questions

Where can I watch The Holy Grail of Eris online for free?+

You can watch The Holy Grail of Eris (2026) online for free in HD on BingeBox. Every season and episode is available with no subscription or sign-up required.

How many seasons does The Holy Grail of Eris have?+

The Holy Grail of Eris has 1 season and a total of 12 episodes.

When did The Holy Grail of Eris first air?+

The Holy Grail of Eris first aired in 2026 and falls under the Animation, Mystery, Sci-Fi & Fantasy genre(s).

Who stars in The Holy Grail of Eris?+

The Holy Grail of Eris stars Kana Ichinose, Sayumi Suzushiro, Yohei Azakami, Mao Ichimichi among others.

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