Watch The Holy Grail of Eris (2026) Free Online
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.
The Holy Grail of Eris is a 2026 animation, mystery and sci-fi & fantasy TV series starring Kana Ichinose, Sayumi Suzushiro and Yohei Azakami. The series has 1 season and 12 episodes. Viewers rate it 7.4/10 on TMDB based on 24 votes.
- First aired: 2026-01-08
- Seasons: 1
- Episodes: 12
- Status: Ended
- Genres: Animation, Mystery, Sci-Fi & Fantasy
- TMDB rating: 7.4/10
The Holy Grail of Eris cast
Kana Ichinose, Sayumi Suzushiro, Yohei Azakami, Mao Ichimichi, Maaya Uchida, Natsuki Hanae, Jun Fukuyama
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