The Holy Grail of Eris poster

The Holy Grail of Eris

TV Series 2026 TMDB 7.4/10 Ended

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.

The Holy Grail of Eris is a TV series first shown in 2026. TMDB lists 1 season and 12 episodes for this title. Status: Ended. Genres: Animation, Mystery, Sci-Fi & Fantasy. TMDB score 7.4/10 from 24 votes.

1Seasons
12Episodes
24TMDB votes
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Title details

Type
TV Series
Japanese title
エリスの聖杯
Release year
2026
First air date
January 8, 2026
Last air date
March 26, 2026
Status
Ended
Seasons
1
Episodes
12
Genres
Animation, Mystery, Sci-Fi & Fantasy
Networks
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
Production companies
Ashi Productions, Good Smile Film, Hakuhodo DY Music & Pictures, Drecom, TBS, LDH JAPAN, BS11, TEICHIKU ENTERTAINMENT
Director
Morita to Jumpei
TMDB rating
7.4/10 (24 votes)
TMDB
View on TMDB
Official website
eris-seihai.com

Official trailer

Official Trailer [Subtitled]

Seasons

S1 Season 1 · 2026 12 ep

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)

Characters

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

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