Watch The Holy Grail of Eris 3rd promotional video on YouTube
The anime will debut on TBS and 28 affiliate stations on January 8, 2026, at 11:56 p.m. The anime will then air on BS11 on January 10, 2026, at 1:00 a.m. The anime is scheduled to premiere online first on ABEMA and the d Anime Store before its broadcast debut, but the staff will reveal the exact online debut details at a later date. Crunchyroll will stream the anime as it airs, ensuring international accessibility for fans worldwide. The Holy Grail of Eris January 2026 premiere marks the highly anticipated adaptation of the popular light novel series, bringing Constance Grail and Scarlett Castiel's story to animated form. Kana Ichinose stars in the anime as Constance Grail and Sayumi Suzushiro stars as Scarlett Castiel. Both are reprising their roles from the light novel's previous drama CD, ensuring continuity between the audio drama and anime adaptations. The Holy Grail of Eris cast announcement highlights the return of the original voice actors, with Ichinose bringing her experience from Frieren: Beyond Journey's End to the role of Connie, while Suzushiro brings her talent from BOCCHI THE ROCK! to the role of the ghostly Scarlett. The cast also includes Yōhei Azakami as Randolph Alster, M.A.O as Lily Orlamünde, Maaya Uchida as Cecilia Adelbide, Natsuki Hanae as Enrique Adelbide, and Jun Fukuyama as Dominic Hamsworth. The Holy Grail of Eris supporting cast brings together experienced voice actors, creating a strong ensemble that brings the story's diverse characters to life with compelling performances. The staff includes Director "Morita to Jumpei" (JUMPEI & MORITA), Series Composition and Script by Kenichi Yamashita, Character Design by Chie Kawaguchi, Sub-Character Design by Jun Yukawa, Art Director Nobuhito Sue (Kusanagi), Color Design by Aiko Yamagami (T.D.I.), Director of Photography Yūko Kamahara (T.D.F.), Editing by Yuriko Sano (T.A.P.), Sound Director Yūichi Morita, Production by Good Smile Film / DRE Pictures, Production Cooperation by STUDIO LIVE, and Animation Production by Ashi Productions. The Holy Grail of Eris production staff brings together experienced professionals from various aspects of anime production, ensuring high-quality visuals and storytelling. Yukari Tamura performs the ending theme song "Camellia," complementing Reina Washio's opening theme "Happy Ever After feat. YU-KA." The Holy Grail of Eris theme songs feature popular Japanese artists, creating memorable musical moments that enhance the series' emotional impact and appeal, with both songs contributing to the anime's overall atmosphere and tone. Tokiwa launched the story on the Shōsetsuka ni Narō website in 2017, establishing the series in the web novel format before its light novel publication. Drecom published the original light novel's five volumes simultaneously in November 2024, providing readers with the complete story in a single release. The Holy Grail of Eris light novel publication demonstrates the series' popularity and the publisher's confidence in the story's appeal. Yen Press releases the light novels in English and describes the story: "Connie is a young noblewoman whose only standout quality is her sincerity. Maybe that's why she loses her fiancée and gets framed for a crime in the span of one night. Just as all hope seems lost, the ghost of an infamous villainess who was executed years ago possesses her and clears her name. With her incomparable charisma and intelligence, the spirit of Scarlet Castiel turns the tables in the blink of an eye. In return, Connie insists that she help uncover the truth surrounding her new benefactor's untimely death and a conspiracy that continues to this very day!" The Holy Grail of Eris plot summary emphasizes the story's unique premise of an unlikely partnership between a noblewoman and a ghostly villainess, creating an engaging mystery narrative that combines fantasy, historical elements, and character-driven drama. Hinase Momoyama's manga adaptation launched on Square Enix's Manga UP! web manga site and app in 2019, providing a visual interpretation of the story. Yen Press also publishes the manga adaptation, and Square Enix's Manga UP! Global publishes the manga digitally, making the adaptation accessible to international audiences. S.Kosugi launched a sequel manga adaptation titled Eris no Seihai S (The Holy Grail of Eris -SEQUEL-) in October 2024, expanding the franchise's narrative scope and demonstrating the story's enduring appeal. The Holy Grail of Eris January 2026 premiere represents an exciting adaptation of the popular light novel series, bringing Constance and Scarlett's story to television audiences. The combination of experienced staff, talented voice actors, a beloved source material, and strong production values creates an appealing package for viewers seeking fantasy mystery and character-driven narratives. The series will join other anticipated anime premieres in what promises to be an exciting winter 2026 anime season.Frequently Asked Questions
The anime premieres in Japan on January 8, 2026, at 11:56 p.m. on TBS and 28 affiliate stations. It will also air on BS11 starting January 10, 2026.
The story follows Constance "Connie" Grail, a sincere noblewoman who is framed for a crime and loses her fiancé. She is saved by the ghost of Scarlett Castiel, an infamous "villainess" executed ten years prior. In exchange for Scarlett's help in clearing her name, Connie agrees to help the ghost uncover the truth behind her execution and a lingering political conspiracy.
The main characters are Constance Grail, voiced by Kana Ichinose, and Scarlett Castiel, voiced by Sayumi Suzushiro. Both actresses are reprising their roles from the series' previous drama CD.
The opening theme song is titled "Happy Ever After feat. YU-KA" and is performed by Reina Washio.
The ending theme song is titled "Camellia" and is performed by Yukari Tamura.
The animation production is being handled by Ashi Productions, with production cooperation from STUDIO LIVE.
Outside of Japan, Crunchyroll will stream the anime as it airs. In Japan, it will be available online first on ABEMA and the d Anime Store before its television broadcast.
It is an original series written by Kujira Tokiwa and illustrated by Yuunagi. The light novels are published in English by Yen Press, which offers them in both print and digital formats.
Yes. A manga adaptation by Hinase Momoyama launched in 2019 on Square Enix's Manga UP!. Additionally, a sequel manga titled Eris no Seihai S by S.Kosugi began serialization in October 2024.
The series is primarily categorized as a Fantasy Mystery and Supernatural Drama, featuring elements of political intrigue and the "villainess" subgenre.