The highly anticipated TV anime adaptation of The Holy Grail of Eris is set to premiere on January 8, 2026, and has officially unveiled the artists performing its opening and ending theme songs. Reina Washio featuring Yu-ka will perform the opening theme “Happy Ever After,” while Yukari Tamura will take on the ending theme “Camellia”.
Premiere Date and Broadcast Information
Fans can mark their calendars for January 8, 2026, as The Holy Grail of Eris begins its broadcast. The anime will air on TBS and 28 affiliate stations at 11:56 p.m. JST, with subsequent airings on BS11. The announcement also came with a new visual for the series.
Theme Song Artists Bring Distinctive Voices
The musical landscape of The Holy Grail of Eris will be shaped by two notable artists. Reina Washio, formerly a member of the dance and vocal group E-girls, will contribute her powerful vocals to the opening theme, “Happy Ever After,” in collaboration with Yu-ka. Veteran voice actress and singer Yukari Tamura will perform the ending theme, “Camellia” (カメリア, Kameria), adding her unique touch to the series’ conclusion.
Production and Staff Details
Ashi Productions is handling the animation production for The Holy Grail of Eris, with Good Smile Film and DRE Pictures involved in general production. The series is directed by Morita to Junpei, with Kenichi Yamashita overseeing the series composition and writing episode scripts. Chie Kawaguchi is credited with character designs, and Jun Yukawa is responsible for sub-character designs.
Other key staff members include Nobuhito Sue (Kusanagi) as Art Director, Aiko Yamagami (T.D.I.) for Color Design, Yūko Kamahara (T.D.F.) as Director of Photography, and Yuriko Sano (T.A.P.) as Editor. The sound direction is handled by Yūichi Morita.
Voice Cast Reprises Roles
The main cast for the anime features familiar voices, with Kana Ichinose starring as Constance Grail and Sayumi Suzushiro as Scarlett Castiel. Both actresses are reprising their roles from the light novel’s previous drama CD. Additional cast members include Yōhei Azakami as Randolph Ulster and M.A.O as Lily Orlamunde.
A Glimpse into the Story
The Holy Grail of Eris (Japanese: エリスの聖杯, Hepburn: Erisu no Seihai) is based on the light novel series written by Kujira Tokiwa and illustrated by Yuunagi. The story follows Constance Grail, a sincere but unassuming viscount’s daughter who finds herself framed for a crime and losing her fiancé. In her despair, she encounters the ghost of Scarlett Castiel, a beautiful and charismatic duchess executed ten years prior for her alleged wickedness. Scarlett possesses Connie, using her sharp intellect and charisma to turn the tables on Connie’s tormentors. In return, Connie agrees to help uncover the truth behind Scarlett’s untimely death and a larger conspiracy that continues to unfold.
The light novel series was originally serialized online and later published by SB Creative and Drecom Media. A manga adaptation by Hinase Momoyama has been serialized on Square Enix’s Manga Up! platform since November 2019. Yen Press publishes both the light novel and manga adaptations in North America.
