DRECOM has released a second new trailer for the upcoming The Holy Grail of Eris TV anime series during a panel at Anime Expo 2025. It also confirmed that the series will begin broadcasting in Japan in January 2026 on TBS and its affiliated stations.
Junpei Morita (LOST SONG), who is credited under the pen name Morita to Junpei, is directing the anime adaptation, with Kenichi Yamamoto (MF Ghost series screenwriter and co-scriptwriter) and Chie Kawaguchi as character designer. Ashi Production is handling the animation production for the series.
Meanwhile, the anime’s voice cast stars:
- • Kana Ichinose as Constance Grail
- • Sayumi Suzushiro as Scarlett Castiel
- • Yohei Azakami as Randolph
- • M.A.O as Lily
The anime is based on the light novel series written by Kujira Tokiwa and illustrated by Yu-Nagi, which was first published by SB Creative’s GA Novel imprint on November 14, 2019 and ended on November 7, 2024. Four volumes were released in total. The series originally began as a Shosetsuka ni Naro web novel from October 16, 2017 to August 4, 2018.
DRECOM’s DRE Novel imprint would later acquire the series and has rereleased them in five new volumes, as of November 2024.
The light novel would also inspire a manga adaptation in November 2019 and another sequel manga titled Eris no Seihai S in November 2024.
Yen Press releases the GA Novel volumes of The Holy Grail of Eris in English, describing the main synopsis as:
As a viscount’s daughter, Constance Grail is an ordinary girl whose only notable trait is sincerity, leaving her with no real options when someone steals her fianc and falsely accuses her of petty theft at a ball. While Connie awaits her undeserved punishment, a ghost appears to offer a bargain. The spirit is none other than Scarlett Castiel, a noblewoman once praised for her beauty, lineage, and undeniable charisma-and executed some ten years earlier for her wicked deeds. When Connie accepts this proposal, she is possessed by the infamous spirit who instantly turns the tide on her tormenter, thus saving the hapless girl from her miserable fate. It’s never wise striking a deal without knowing exactly what you’ve committed to, though…or you might find yourself bound to a ghost dead set on revenge against her own enemies!
Sources: The Holy Grail of Eris Official Twitter, Official Anime Website, Anime News Network
