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.
- Status
- Ended
- Original Title
- エリスの聖杯
- Original Language
- Japanese
- Production
- Ashi Productions, Good Smile Film, Hakuhodo DY Music & Pictures, Drecom, TBS, LDH JAPAN, BS11, TEICHIKU ENTERTAINMENT, Medicos Entertainment, NewGin, THE KLOCKWORX, Square Enix, Bushiroad Move, DRE Pictures
- Network
- MBS, TBS, CBC, Tulip Television, SBC, BSN, tys, NBC, HBC, RKK, i-Television, SBS, IBC, BSS, MRO, OBS, TUF, RSK, TUY, tbc, RKB, KUTV, RBC, UTY, RCC, MRT, ATV, MBC
- Last Episode
- S1 E12 · Mar 26, 2026
Cast
Media
Official Trailer
Frequently Asked Questions
Where can I watch The Holy Grail of Eris online for free?
You can stream The Holy Grail of Eris (2026) right here on FlixWow — every episode, in HD, completely free. No subscription, no signup, nothing to install.
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 l…
How many episodes does The Holy Grail of Eris have?
The Holy Grail of Eris has 12 episodes — all available to watch free on FlixWow.
Who stars in The Holy Grail of Eris?
The series stars Kana Ichinose, Sayumi Suzushiro, Yohei Azakami, Mao Ichimichi, Maaya Uchida and more.
When was The Holy Grail of Eris released?
The Holy Grail of Eris was released in 2026 and is streaming free on FlixWow.
Is The Holy Grail of Eris worth watching?
The Holy Grail of Eris holds a rating of 7.3/10 from viewer votes (23 ratings). Watch it free on FlixWow and judge for yourself.