TV
TV SERIES
Ended
The Holy Grail of Eris
Animation
Mystery
Sci-Fi & Fantasy
★ 7.4/10 TMDB
Premiered 2026-01-08
1 season
12 eps
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.
Last Episode Aired
2026-03-26
S1E12 — The Final Chapter: At the Grand Merillian
As the hour of Constance's execution approaches, Scarlett finds a crucial document and Cecilia makes her move.
Where to Watch
Stream
Crunchyroll
Crunchyroll Amazon Channel
Crunchyroll
Crunchyroll Amazon Channel
Availability data provided by JustWatch via TMDB
Billed 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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