In winter 2026, the anime The Holy Grail of Eris features ghost possession, aristocratic revenge, and a false accusation against a noblewoman. She enters into a bargain with the spirit of someone who has been executed and uncovers a conspiracy that has been buried for over a decade.The first episode will be broadcast on Japanese television on January 8th, 2026, at 23:56 JST, which translates to Eastern Standard Time (EST) on January 8th, 2026, at 9:56 AM (9:56:00). For viewers located in the Pacific Standard Time (PST) zone, the air time will be at 6:56 AM PST on January 8th, 2026. For viewers in Europe, the release date will be during the afternoon of January 8th, 2026, at approximately 3:56 PM CET (Central European Time).Scarlett Castiel as seen in the series (Image Source: Ashi Productions)You can stream The Holy Grail of Eris on Crunchyroll if you live in a lot of different parts of the world. Crunchyroll's become the go-to place for anime lovers around the globe. They provide their fans with both subbed and dubbed entries. Another streaming source is Aniplus Asia, which has licensed The Holy Grail of Eris for broadcast in that country.The Story Behind The Holy Grail of ErisThe story of The Holy Grail of Eris is about Constance Grail, who is a regular viscount's daughter, with her main trait being that she is very honest. At a ball, when a thief steals her fiancé away from her and accuses her of being the thief, her whole life changes.Grail and the ghost of Scarlett (Image Source: Ashi Productions)You see, just before she was to be punished for something she did not do, Connie had the chance to meet the ghost of Scarlett Castiel, a noblewoman who was killed ten years earlier for being a horrible person.Since Scarlett was beautiful, from a wealthy lineage, and had an amazing personality, she made Connie an offer she couldn't refuse. There was a ghost that possessed Connie, and it completely flipped the script on who was torturing her; it cleared Connie's name as innocent.But with making deals with a ghost seeking revenge on her would-be executioners comes some consequences, and Connie is now bound to Scarlett until Scarlett gets her revenge and figures out what really happened to her. So now they both need to figure out how to deal with the situation, as there is still a conspiracy that follows the present.Cast and CharactersConstance Grail as seen in the ballroom (Image Source: Ashi Productions)The Holy Grail of Eris has an amazing vocal cast that really brings the characters to life! Kana Ichinose is the voice of Constance Grail, and Sayumi Suzushiro is the voice of Scarlett Castiel. Both actresses previously voiced these characters in the light novel's last drama CD, which helps keep their voices sounding as close to the same as possible.Supporting characters are Randolph Ulster, who is voiced by Yohei Azakami, and Lily Orlamunde, who is voiced by M.A.O. Lily's tragic demise propels the series' central mystery forward. Other key players include Natsuki Hanae as Enrique Adelbide, Maaya Uchida as Cecilia Adelbide, and Jun Fukuyama as Dominic Harmsworth, all of whom are experienced voice actors.Production DetailsStudio Ashi Productions is the animation studio working on The Holy Grail of Eris. Directors JUMPEI and MORITA are using the alias "Morita to Junpei" and have previously collaborated on a project titled LOST SONG. Kenichi Yamashita created the storylines and scriptwriting for the series; he has worked on many projects in the past, including The Tale of Outcasts. Chie Kawaguchi (Fruits Basket) designed the characters, and Jun Yukawa helped with the character design.Reina Washio recorded the opening theme song, "Happy Ever After feat. YU-KA," and will be providing the performance for the song. Yukari Tamura recorded the ending theme song, "Camellia," which adds to the fantasy atmosphere of the series.What to Expect from the AdaptationFans looking forward to The Holy Grail of Eris can expect to see a supernatural drama full of mystery and a heavy reliance on themes like revenge and conspiracy. The dynamic between Connie and Scarlett being possessed by one another makes for a very interesting narrative, as it allows us to see one individual with two different personalities.The series also promises plenty of period fantasy visuals mixed with supernatural aspects. Audiences can look forward to elegant ballroom scenes, aristocrats getting into various scandals, and perhaps even some ghostly spirits. As the season progresses, the mystery of why Scarlett was executed and how it all fits together will continue to develop.