The Holy Grail of Eris

Name: The Holy Grail of Eris
Genre: Animation, Mystery, Sci-Fi & Fantasy
Rating: 8
Cast: Kana Ichinose, Sayumi Suzushiro, Yohei Azakami, Mao Ichimichi, Maaya Uchida

エリスの聖杯 (2026)

Seasons: 1, episodes: 12

Animation, Mystery, Sci-Fi & Fantasy

Japan

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

Average rating: 8/10 20 787

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All about the series

Video 1

Photo 11

Actors and characters

Video for the series The Holy Grail of Eris — Official Trailer [Subtitled]

2:00

Photo 11

Production

Ashi Productions, Good Smile Film, Hakuhodo DY Music & Pictures

Premiere

8 January 2026

Last episode

26 March 2026

Status

Completed

Composer

Yoshiaki Dewa

Producer

Satoshi Fukao

All team (29)

Actors

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)

All actors and roles (7)

Short description

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.