The Holy Grail of Eris_
Original: エリスの聖杯
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.
Network
MBS
Episodes
12
Updated Feb 16, 2026
WHERE TO WATCH
Crunchyroll
24 countries
Prime Video
1 country
Anime Times Amazon Channel
1 country
dAnime Amazon Channel
1 country
FOD Channel Amazon Channel
1 country
Hulu
1 country
DROPTHE_ GOSSIP
Overview
The Holy Grail of Eris has 1 season with 12 episodes spanning 2026-present.
Rating
With a 7.6/10 rating from 7 votes, The Holy Grail of Eris is considered highly rated.
CAST (7)
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)
SEASONS (1 season, 12 episodes)
SEASON 1
01
At the Grand Merillian
Constance Grail attends a party only to find her fiancé kissing another woman and herself accused of a crime.
02
An Extraordinary Villainess and an Ordinary Girl
The ghostly Scarlett demands that Constance repay her help by avenging her death.
03
Respective Answers and Beginnings
Constance and Scarlett follow a tip to a masked ball with a sinister reputation.
04
The Silent Ladies' Tea Party
Constance receives a summons from an investigative committee determined to put her on trial.
05
And the Cock Crows to Herald the Dawn
Constance's carriage suffers a shocking attack and an even more shocking rescue.
06
Episode 6
07
Episode 7
08
Episode 8
09
Episode 9
10
Episode 10
11
Episode 11
12
Episode 12
SERIES INFO
1
Seasons
12
Episodes
Returning Series
Status
NETWORKS (28)
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
DETAILS
First Aired
Status
Returning Series
Seasons
1
Episodes
12
Language
Japanese
Country
Rating
7.6/10 (7 votes)
Popularity
9
IMDB
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.
Where can I watch The Holy Grail of Eris?
The Holy Grail of Eris is available on Crunchyroll, Prime Video, Anime Times Amazon Channel, dAnime Amazon Channel, FOD Channel Amazon Channel. Availability varies by region.
How many seasons does The Holy Grail of Eris have?
The Holy Grail of Eris has 1 season with 12 episodes total.
Who stars in The Holy Grail of Eris?
The cast of The Holy Grail of Eris includes Kana Ichinose, Sayumi Suzushiro, Yohei Azakami, Mao Ichimichi, Maaya Uchida.
What is the rating of The Holy Grail of Eris?
The Holy Grail of Eris has a rating of 7.6 out of 10 based on 7 votes on TMDB.
Is The Holy Grail of Eris still running?
The Holy Grail of Eris is currently active with a status of "Returning Series."
GENRES (3)
Animation
Mystery
Sci-Fi & Fantasy
