The Holy Grail of Eris
Series Overview
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.
Broadcast Schedule & Network Information
Airing status, episode counts, upcoming schedule, and network syndication.
1 Season • 12 Episodes
2026 – 2026
Premiered: Thu, Jan 8, 2026
Creative Production Team
Latest Aired Episode
Season 1, Episode 12: “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.
Seasons & Episodes Breakdown
Trailers, Teasers & Extra Featurettes
Official promotional previews, behind-the-scenes footage, and exclusive clips.
Official Trailer [Subtitled]Official
Type: Trailer • Published 2025-12-16
Cast & Creators
Explore Star Directory →
Creative Leadership & Key Crew
Morita to Jumpei
Kenichi Yamashita
Yoshiaki Dewa, Toru Ishitsuka
Yuko Kamahara
Yuriko Sano
Seiji Miyazaki, Satoshi Fukao, Hiroto Utsunomiya, Tomoko Fujimura, Yusuke Onuki
Department Leadership Roster
Yuriko Sano
Editor
Yuko Kamahara
Director of Photography
Yoshiaki Dewa
Original Music Composer
Toru Ishitsuka
Original Music Composer
Satoshi Fukao
Producer
Hiroto Utsunomiya
Producer
Tomoko Fujimura
Producer
Yusuke Onuki
Producer
Fumihiro Ozawa
Producer
Masakatsu Kato
Producer
Tomoyuki Ohwada
Producer
Yuma Mori
Producer
Keiko Tokuda
Producer
Ayana Tanabe
Producer
Youjin Fukushima
Producer
Age Classification & Content Advisories
Official viewer rating standards and content warnings across international classification boards.
TV-14: Parents Strongly Cautioned — Contains material unsuitable for children under 14.
International Certification Matrix
Interdit aux moins de 12 ans — 12+ only.
Parents Strongly Cautioned — Contains material unsuitable for children under 14.
Mature — Recommended for viewers 15 and older.
Production Stills & Gallery
Official cinematic photography and background stills for The Holy Grail of Eris.
Shows Similar to The Holy Grail of Eris
Series sharing comparable tone, character dynamics, and narrative themes
7.5
7.9Anime
7.9Anime
5.9Anime
8.1Anime
8.2Anime
6.5Anime
8.3Anime
7.9Anime
6.0Anime
6.4
6.9Anime
7.5Anime
6.3Anime
3.5Anime
7.1
7.6
6.8Anime
8.4Anime
8.0Anime
More Series Like The Holy Grail of Eris
Shows sharing similar genres, audiences, and storylines.
Frequently Asked Questions About The Holy Grail of Eris
Key facts, seasons breakdown, and credits for search engines and AI assistants.
What is The Holy Grail of Eris about?
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.
How many seasons does The Holy Grail of Eris have?
The Holy Grail of Eris comprises 1 season available to explore.
Who stars in The Holy Grail of Eris?
Key cast members in The Holy Grail of Eris include Kana Ichinose, Sayumi Suzushiro, Yohei Azakami, Mao Ichimichi, Maaya Uchida.
Who created or directed The Holy Grail of Eris?
The Holy Grail of Eris was developed and directed by Morita to Jumpei.