The Holy Grail of Eris
2026•TV-14•1 Seasons•12 Episodes•7.4•Ended
AnimationMysterySci-Fi & Fantasy
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, 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
Origin
JP
Cast
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)
Episodes
Recommended
7.5
Slayers
1995
6.1
Occultic;Nine
2016
8.9
MAO
2026
7.8
An Observation Log of My Fiancée Who Calls Herself a Villainess
2026
8.4
Pass the Monster Meat, Milady!
2025
7.6
The Most Notorious "Talker" Runs the World's Greatest Clan
2024
8.3
YATAGARASU: The Raven Does Not Choose Its Master
2024
7.8
Rozen Maiden
2004
7.4
Gankutsuou
2004
7.7
Easygoing Territory Defense by the Optimistic Lord
2026
8.2
The Do-Over Damsel Conquers the Dragon Emperor
2024
7.7
Farming Life in Another World
2023
7.3
Reincarnated as a Sword
2022
7.4
As a Reincarnated Aristocrat, I'll Use My Appraisal Skill to Rise in the World
2024
7.1
The "Hentai" Prince and the Stony Cat
2013
7.6
The Dark History of the Reincarnated Villainess
2025
7.6
The Gorilla God's Go-To Girl
2025
9.3
The Ogre's Bride
2026
6.5
The Foolish Angel Dances with the Devil
2024
7.1
Tearmoon Empire
2023
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