The Holy Grail of Eris (TV)

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Alternative title:
Eris no Seihai (Japanese)
エリスの聖杯 (Japanese)
Genres: drama, fantasy, mystery
Objectionable content: Significant
Plot Summary: 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.
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Running time: 23 minutes
Episode titles: We have 6
Vintage: 2026-01-08
Opening Theme:
"Happy Ever After" by Reina Washio feat. YU-KA
Ending Theme:
"Camellia" by Yukari Tamura
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Japanese staff
Japanese cast
Series Composition: Kenichi Yamashita
Original creator: Kujira Tokiwa
Original Character Design: Yuunagi
Character Design: Chie Kawaguchi
Art Director: Nobuhito Sue (Kusanagi)
Sound Director: Yūichi Morita
Director of Photography: Yūko Kamahara (Toon Additional Pictures; T.D.F.)

Color design: Aiko Yamagami (Toon Additional Pictures; T.D.I.)
Editing: Yuriko Sano (Toon Additional Pictures; T.D.B.)
Sub-Character Design: Jun Yukawa
Theme Song Arrangement:
Ryō Sakuma (ED)
Shūhei Takahashi (OP)
Theme Song Composition:
Ryō Sakuma (ED)
Tong Yi Xin Li (OP)
Theme Song Lyrics:
Ryōsuke Kawashima (ED)
Safari Natsukawa (OP)
Theme Song Performance:
Reina Washio (OP)
YU-KA (OP)
Yukari Tamura (ED)
Kana Ichinose as Constance Grail
Sayumi Suzushiro as Scarlett Castiel

Jun Fukuyama as Dominic Harmsworth
M.A.O as Lily Orlamunde
Maaya Uchida as Cecilia Adelbide
Natsuki Hanae as Enrique Adelbide
Yōhei Azakami as Randolph Ulster

Afumi Hashi as Viscountess Stan (ep 1)
Ai Kayano as Miriam (ep 5)
Anri Tanaka as Baron Bower's Daughter (ep 1)
Aria Seki as Janine Holland (ep 4)
Asaki Yuikawa as George (ep 2)
Aya Yamane as Amelia Hobbes (eps 4-5)
Ayako Kawasumi as Abigail O'Brian (eps 4-6)
Chiwa Saitō as Deborah Darkian (eps 3-4)
Emiko Takeuchi as
Kate's mother (ep 5)
Lady in the Lemon Dress (ep 1)
Fū Hirohara as Caroline Fox (ep 4)
Hana Shimano as Kiara (eps 2-3)
Hayato Dōjima as Gatekeeper (ep 3)
Hayato Fujii as Jose (ep 5)
Hika Tsukishiro as Kate Lorraine (eps 1-2, 4-5)
Hina Tachibana as Shoshanna (ep 5)
Hiroki Tōchi as Ernst Adelbide (ep 3)
Ikuji Nose as Ruffian (ep 5)
Ikumi Hayama as Sharon (ep 6)
Issei Futamata as Kendall (ep 4)
Junichi Yanagita as Salvador (ep 5)
Kazuyuki Okitsu as Maximillian (ep 3)
Kimiko Saitō as Kimberly Smith (ep 4)
Kōsuke Toriumi as Adolphus Castiel (ep 6)
Kyō Yaoya as
Anna (ep 5)
Sister (ep 2)
Masaya Miyazaki as Wayne Hastings (ep 1)
Motoki Sakuma as Coachman (ep 4)
Naoko Nokubi as Countess Emmanuelle (ep 1)
Natsune Inui as Lucia O'Brian (ep 6)
Reina Kondo as Rebekah (ep 5)
Rikuto Sunaga as Ruffian (ep 5)
Sae Hiratsuka as Brenda (ep 1)
Sakura Kawaguchi as Margot Tudor (ep 2)
Saori Ōnishi as Pamela Francis (eps 1, 5)
Sayuri Hara as Emilia Godwin (ep 2)
Setsuo Itō as Neil Bronson (ep 1)
Shōya Chiba as Aldous Clayton (eps 4-5)
Shunsaku Nishigaki as Ethel (ep 1)
Sōshirō Hori as Coachman (ep 4)
Takayuki Miyamoto as Knight Pelham (ep 1)
Takeshi Miyajima as Butler (ep 2)
Wakana Kuramochi as Mylene Reese (eps 1, 4)
Wakana Magaino as Esther McLain (ep 4)
Wataru Komada as Kyle (eps 3, 5)
Yū Kobayashi as Aisha Huxley (eps 2, 6)
Yūki Hoshi as Ruffian (ep 5)
Yūki Shin as Gaina (ep 3)
Yūki Urushiyama as Tony (eps 2, 4)
Yūsuke Tomioka as Servant (ep 1)
Japanese companies
2nd Key Animation:
Art Base Bam (ep 1)
Kino Production (ep 1)
Animation Direction: Ashi Productions (OP)
Animation Production: Ashi Productions
Background Art: Kusanagi
Background Art Assistance: Nam Hai (ep 1)
Color Design: Toon Additional Pictures (T.D.I.)
Editing Studio: Toon Additional Pictures (T.D.B.)
Finish Animation:
Big Owl (ep 1)
Weilai Animation (OP)
Yonekawa (OP)
In-Between Animation:
Big Owl (ep 1)
Weilai Animation (OP)
Yonekawa (OP)
Key Animation:
Art Base Bam (ep 1)
Ashi Productions (OP; ep 1)
Photography: Toon Additional Pictures (T.D.F.)
English staff
English companies
(none)
Internet Streaming: Crunchyroll
English cast
(none)
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