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.
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)
Seasons
E1At the Grand Merillian
Jan 8, 2026
Constance Grail attends a party only to find her fiancé kissing another woman and herself accused of a crime.
E2An Extraordinary Villainess and an Ordinary Girl
Jan 15, 2026
The ghostly Scarlett demands that Constance repay her help by avenging her death.
E3Respective Answers and Beginnings
Jan 22, 2026
Constance and Scarlett follow a tip to a masked ball with a sinister reputation.
E4The Silent Ladies' Tea Party
Jan 29, 2026
Constance receives a summons from an investigative committee determined to put her on trial.
E5And the Cock Crows to Herald the Dawn
Feb 5, 2026
Constance's carriage suffers a shocking attack and an even more shocking rescue.
E6The Command of the Goddess
Feb 12, 2026
Both Constance and Randolph uncover fresh clues, but Lily's last message remains shrouded in mystery.
E7A Banquet of Insectivorous Plants
Feb 19, 2026
Daeg Gallus contrives to murder Aisha before she can reveal the truth and cast suspicion on Abigail.
E8Lily Orlamunde
Feb 26, 2026
Constance, Scarlett, and Randolph discover a letter that reveals Lily's struggle and the truth she uncovered.
E9The Holy Grail of Eris
Mar 5, 2026
Scarlett possesses Constance to confront her own father.
E10For the Future
Mar 12, 2026
Constance, Scarlett, and Randolph pursue the kidnapped Ulysses and stumble into a shootout.
E11Those Who Defy Fate
Mar 19, 2026
Constance is jailed on her own testimony and given a sentence of death.
E12The Final Chapter: At the Grand Merillian
Mar 26, 2026
As the hour of Constance's execution approaches, Scarlett finds a crucial document and Cecilia makes her move.
Videos
Storyline
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.
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