The Holy Grail of Eris
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.
First Aired
2026-01-08
Status
Ended
Network
MBS
Seasons
Season 1 Episodes
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E1. At the Grand Merillian
Constance Grail attends a party only to find her fiancé kissing another woman and herself accused of a crime.
★ 6.7
E2. An Extraordinary Villainess and an Ordinary Girl
The ghostly Scarlett demands that Constance repay her help by avenging her death.
★ 7.0
E3. Respective Answers and Beginnings
Constance and Scarlett follow a tip to a masked ball with a sinister reputation.
★ 7.0
E4. The Silent Ladies' Tea Party
Constance receives a summons from an investigative committee determined to put her on trial.
★ 6.7
E5. And the Cock Crows to Herald the Dawn
Constance's carriage suffers a shocking attack and an even more shocking rescue.
★ 7.0
E6. The Command of the Goddess
Both Constance and Randolph uncover fresh clues, but Lily's last message remains shrouded in mystery.
★ 7.0
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)
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