The Holy Grail of Eris
TVFinished

The Holy Grail of Eris

Eris no Seihai

Ashi Productions

Genres

  • Mystery
  • Supernatural

Tags

all 14
  • Main CastFemale Protagonist100
  • TraitsGhost97
  • OtherRoyal Affairs95
  • DramaRevenge94
  • TraitsVillainess91
  • OtherPolitics80
  • Main CastAnti-Hero79
  • TraitsDetective79
  • TimeHistorical75
  • DemographicShoujo66
  • RomanceHeterosexual63
  • TraitsOjou-sama60
  • SceneForeign40
  • Main CastEnsemble Cast20

Genres: Mystery, Supernatural. Tags: Female Protagonist, Ghost, Royal Affairs, Revenge, Villainess, Politics, Anti-Hero, Detective, Historical, Shoujo, Heterosexual, Ojou-sama.

#4299

Ranked

#3599

Popularity

99

Favorites

16.2K

Members

#20

This Season

Popular TV

#24

This Season

Rated TV

Episode Progress

Complete

12 / 12 episodes aired

All 12 episodes available on Bilibili TV, Crunchyroll

TV12 / 12 epsFinished7.11
Ashi Productions·Winter 2026
Premiered
Winter 2026
Aired
Jan 8, 2026 – Mar 26, 2026
Duration
23 min
Time to Complete
~4h 36m
Studio
Ashi Productions

Alternative Titles

jaエリスの聖杯

en-x-romajiEris no Seihai

thผีนางร้ายจับคู่สาวซื่อ รื้อคดีใหญ่

Synopsis

It is common knowledge that nobles will do anything for power; lying, manipulation, and extortion are the usual tactics. However, one family is exempt from this generalization: House Grail, whose main tenets are truth and integrity. The youngest daughter, Constance Grail, is just as moral as the rest of her family, believing in always doing the right thing and helping those in need. However, these ideals do not help her when her fiancé cheats on her with another woman. Framed by his lover in the hope of her downfall, Constance has no one to hear her pleas for justice. Everyone turns a blind eye, save for one—the spirit of the infamous Scarlett Castiel—who possesses Constance and turns the tables on her accuser. However, this aid does not come without a price. Ten years ago, Scarlett was executed for the attempted murder of Princess Cecilia. But this was actually a setup; as blunt and harsh as Scarlett could be, she would never stoop so low as to use poison. She has no idea who orchestrated her incrimination, but Scarlett demands that Constance—as the only one who can see her—help her exact revenge on all those who wronged her! [Written by MAL Rewrite]

Synopsis

It is common knowledge that nobles will do anything for power; lying, manipulation, and extortion are the usual tactics. However, one family is exempt from this generalization: House Grail, whose main tenets are truth and integrity. The youngest daughter, Constance Grail, is just as moral as the rest of her family, believing in always doing the right thing and helping those in need. However, thes

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Where to Watch

Trailer

Trailer

Platform Scores

MAL

7.11

Canonical
Rank #4299Votes 15.9K

AniList

67 / 100

Trend 29Popularity 16.2K

Kitsu

71 / 100

Rank #4568Users 814Runtime null

AniList Trend

1,684

-928

Episode Guide

Aired so far: 12 / 12

Main Story

12 / 12

100%

Latest Aired

Episode 12

Remaining

Fully available

Aired so far

Theme Songs

Openings

2026
1

Happy Ever After feat. YU-KA (由薫)

Reina Washio (鷲尾伶菜)

eps 2-2026

Endings

2026
1

Happy Ever After feat. YU-KA (由薫)

Reina Washio (鷲尾伶菜)

2026
2

Camellia (カメリア)

Yukari Tamura (田村ゆかり)

eps 2-2026

Status Breakdown

16,248users
Watching8,87954.6%
Planning6,28938.7%
Dropped8285.1%
Paused2191.3%
Completed330.2%

Tags

Shows how closely each tag relates to this anime
Main Cast3
Female Protagonist
100
Anti-Hero
79
Ensemble Cast
20
Traits4
Ghost
97
Villainess
91
Detective
79
Ojou-sama
60
Other2
Royal Affairs
95
Politics
80
Drama1
Revenge
94
Time1
Historical
75
Demographic1
Shoujo
66
Romance1
Heterosexual
63
Scene1
Foreign
40
Show spoiler tags8
Fantasy1
Body Swapping
92
Drama3
Conspiracy
85
Tragedy
79
Suicide
50
Traits1
Arranged Marriage
70
Other1
Drugs
60
Romance1
Age Gap
60
Organisations1
Criminal Organization
20

Recommendations

10 recommendations

Discussion

Discussion