The Holy Grail of Eris TV show poster — watch free in HD on FreeFlix

The Holy Grail of Eris (2026)

★ 7.11 Season12 EpisodesAnimation • Mystery • Sci-Fi & Fantasy
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Synopsis

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.

Series Information

First Aired
2026
Last Aired
2026
Seasons
1
Episodes
12
Genre
Animation, Mystery, Sci-Fi & Fantasy
Network
MBS, TBS, CBC, Tulip Television, SBC, BSN, tys, NBC, HBC, RKK, i-Television, SBS, IBC, BSS, MRO, OBS, TUF, RSK, TUY, tbc, RKB, KUTV, RBC, UTY, RCC, MRT, ATV, MBC
Status
Ended
Rating
7.1 / 10 (21 votes)

Top Cast

Kana Ichinose — cast portrait as Constance Grail (voice)
Kana Ichinose
Constance Grail (voice)
Sayumi Suzushiro — cast portrait as Scarlett Castiel (voice)
Sayumi Suzushiro
Scarlett Castiel (voice)
Yohei Azakami — cast portrait as Randolph Ulster (voices)
Yohei Azakami
Randolph Ulster (voices)
Mao Ichimichi — cast portrait as Lily Orlamunde (voice)
Mao Ichimichi
Lily Orlamunde (voice)
Maaya Uchida — cast portrait as Cecilia Adelbide (voice)
Maaya Uchida
Cecilia Adelbide (voice)
Natsuki Hanae — cast portrait as Enrique Adelbide (voice)
Natsuki Hanae
Enrique Adelbide (voice)
Jun Fukuyama — cast portrait as Dominic Harmsworth (voice)
Jun Fukuyama
Dominic Harmsworth (voice)

Official Trailer

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The Holy Grail of Eris has 1 season and 12 episodes, all available on FreeFlix.

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