Aiyoku no Eustia


Aiyoku no Eustia

TitleAiyoku no Eustia
Original title穢翼のユースティア
AliasesEustia of the Tarnished Wings
LengthLong (30 - 50 hours)
Publishers August & Dramatic Create
 Eustia Translations & Yandere Translations
 Mahou Shounen Esuka ☆ Emuka & Yuegui Liuli Chinese Locali... & Sumisora & Fengdi Hanhuazu
 Nasha Versija & Pin201 & Wonderland


After the surface of the world broke down, the city of Novus Aether floats in the sky, thanks to the prayers of the Holy Maiden. Years ago, when the Holy Maiden's prayer was interrupted, an incident known as the "Gran Forte" occurred, causing a portion of the land to fall and split the lower city into two, separated by a cliff.

In time, the lowest layer became the dwelling of all kinds of low-lives, people who lost much of their former lives during the "Gran Forte", becoming known as the "Prison". However, a contagious disease which causes people to grow wings has spread throughout the city, and a unit has been formed to deal with these people swiftly.

In this "Prison" resides Caim Astraea, a freelance ex-assassin who does odd jobs for his friends for money, refusing jobs that require him to kill people. During one request, Caim finds a girl who contracts the wing-disease, enveloped in a light that reminds Caim of the “Gran Forte” years ago...

Life and Death Drama 3.0 Nakige 3.0 Coodere Heroine 3.0 Psychological Trauma 3.0 Timid Heroine 3.0 Multiple Route Mystery 3.0 Deredere Heroine 3.0 Dark Fantasy 3.0 Ladder Structure 3.0 Religious Heroine 3.0 Enforced Playing Order 3.0 Episodic Story 2.8 Varied Title Screens 2.8 Adult Heroine 2.8 Medieval Fantasy 2.8 Fighting Protagonist 2.8 Central Heroine 2.8 Protagonist with Voice Acting 2.8 Adult Protagonist 2.8 Serious Protagonist 2.8 Mystery 2.7 ADV 2.7 Slums 2.6 Assassin Protagonist 2.6 Airhead Heroine 2.6 Unlockable Side Stories 2.5 Protagonist with a Face 2.5 Track Display 2.4 Princess Heroine 2.4 Multiple Endings 2.4 Loli Heroine 2.4 Medical Doctor Heroine 2.4 Priestess Heroine 2.4 Male Protagonist 2.3 Dual Wielding Daggers 2.3 Other Perspectives 2.3 Heroine with Ahoge 2.3 Knight Heroine 2.3 Brief Branches 2.3 Twin Tail Heroine 2.2 Fighting Heroine 2.2 Sword Combat 2.2 Side Images 2.2 Sword Wielding Heroine 2.2 Knife/Dagger Combat 2.2 Western-style Castle 2.1 Under the Same Roof 2.1 Only Virgin Heroines 2.1 Illness 2.1 Protagonist with Sexual Experience 2.1 Drama 2.1 Politics 2.1 Unlockable Routes 2.0 Branching Plot 2.0 Naked Sprites 2.0 Epidemic 2.0 Philosophy 2.0 Protagonist with Ahoge 2.0 Early Branching Plot 2.0 Pragmatic Heroine 2.0 Dojikko Heroine 2.0 Urban Fantasy 2.0 Apocalypse 2.0 Pragmatic Protagonist 2.0 Unlockable Epilogue 2.0 Unlockable Sexual Content 2.0 Low Sexual Content 2.0 Unrequited Love 2.0 Proactive Protagonist 2.0 Homicide 2.0 Blind Heroine 2.0 Tomboy Heroine 2.0 Pretending Heroine 2.0 Government 2.0 Religious Organization 1.9 Defloration 1.9 Church 1.8 Prostitution 1.8 Officer Heroine 1.8 Drug Use 1.7 Flashback 1.7 Sexual Content 1.7 Panic Button 1.7 Group Sex of One Male and Several Females 1.6 Boobjob 1.6 Action 1.6 Detective Work 1.5 Footjob 1.5 Doggy Style 1.4 Crime Family 1.4 Rain 1.4 Missionary Position 1.3 Multiple Opening Movies 1.3 Fingering 1.2 Romance 1.2 Cunnilingus 1.2 Blowjob 1.2 Handjob 1.2 Sixty-nine 1.2 Murder Mystery 1.2 Fantasy 1.0 Achievements 1.0 Female Ejaculation 1.0 Outdoor Sex 1.0 High Amount of Special Effects 1.0 Anal Sex 1.0 Cowgirl 1.0 Urination Fetish 1.0 Twin Blowjob 1.0 Sex Involving Prostitution 1.0 Lolicon 0.9 Prostitute Heroine 0.4


2010-12-2415+  Aiyoku no Eustia - Tech Gian Super PreludeFully voicedStory: No animationsNon-freeCommercial1280x7201 DVD
2010-12-2818+  Aiyoku no Eustia - Trial EditionFully voicedStory: Simple animationsFreewareCommercial1280x7201 DVD  
2011-01-1417+  Aiyoku no Eustia - Web Trial EditionFully voicedStory: Simple animationsFreewareCommercial1280x720Internet download  
2011-04-2818+  Aiyoku no Eustia - First Press EditionFully voicedStory: No animationsEro: No animationsNon-freeCommercial1280x7201 DVDComes with a material disc, 2011-2012 calendar, a soundtrack with 5 BGM themes, an artbook, and a Tia Signature Board.  
2011-07-2918+  Aiyoku no Eustia - Regular EditionFully voicedStory: Simple animationsEro: No animationsNon-freeCommercial1280x7201 DVDIncludes an artbook.  
2014-06-2617+  Aiyoku no Eustia: Angel's Blessing - Regular EditionFully voicedStory: Simple animationsNon-freeCommercial1 Memory card  
2014-06-2617+  Aiyoku no Eustia: Angel's Blessing - Limited EditionFully voicedStory: Simple animationsNon-freeCommercial1 Memory card  
2014-07-1017+  Aiyoku no Eustia: Angel's Blessing - Download EditionStory: Simple animationsNon-freeCommercialInternet download  
2014-11-2118+  Aiyoku no Eustia - Download EditionFully voicedStory: Simple animationsEro: No animationsNon-freeCommercial1280x720Internet download  
2016-11-2218+   Aiyoku no Eustia - New EditionFully voicedStory: No animationsEro: No animationsNon-freeCommercial1280x720Internet downloadImprovement version of Aiyoku no Eustia
New feature
1. Windows 8.1/10, Android Support
2. Online Save
3. Tablet mode  
2011-04-2217+  Aiyoku no Eustia - Web Trial Edition (patch)FreewareInternet downloadThe trial can still be downloaded from Yandere Translations' Mediafire folder.  
2012-11-1918+  Aiyoku no Eustia (patch)FreewareInternet downloadThis patch translates all in-game text and images in the game up to the end of Fione's portion of the story.

The patch can still be downloaded from Yandere Translations' Mediafire folder.  
TBA18+  Aiyoku no Eustia (patch)FreewareInternet downloadProgress as of May 13, 2018:
Translation: 42.42%
Edit: 29.62%  
2011-07-0118+  Huiyi de Yousidiya (patch)FreewareInternet downloadSimplified Chinese  
2011-11-2518+  Huiyi de Yousidiya (patch)FreewareInternet downloadSimplified Chinese translation.

This translation is supposedly superior to the other (rather rushed) translation (r15164).

Note:Ero scene didn't get translated.  
2014-10-0618+  Aiyoku no Eustia (patch)FreewareInternet download  
2017-12-31  Aiyoku no Eustia (patch)FreewareInternet download  
2018-07-1618+  A megfakult szárnyú Eustia (patch)FreewareInternet downloadRegistration is required to download.  
2018-07-1617+  A megfakult szárnyú Eustia (patch)FreewareInternet downloadRegistration is required to download.  


Character summary

Protagonist Caim Astraea
Voiced by Ooishi Keizou
Main character Eris Floralia
Main character Eustia Astraea
Voiced by Moriyasu Shiho
Main character Fione Silvaria
Main character Licia de novus Yurii
Voiced by Ebihara Yuzuha
Main character Lucius dis Mireille
Voiced by Okino Yasuhiro
Main character Saint Irene
Voiced by Toono Soyogi
Side character Gau Rugeila
Voiced by Kaibara Elena
Side character Gilbert dis Balstein
Side character Laviria
Voiced by Kiritani Hana
Side character Melt Logtie
Voiced by Akashi Anna
Side character Nudar Atraid
Voiced by Noriyuki
Side character Siegfried Grado
Voiced by Shiki Ji
Side character Sistina Uyl
Voiced by Ai Kikka
Side character Varrius Meisner
Voiced by Ichijou Kazuya

User stats

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843 votes total, average 8.51 (very good)
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Popularity: ranked #102 with a score of 13.51

Bayesian rating: ranked #22 with a rating of 8.37


  Aiyoku no Eustia - Tech Gian Super Prelude

Screenshot #15578Screenshot #15580Screenshot #15582Screenshot #15583

  Aiyoku no Eustia - First Press Edition

Screenshot #19636Screenshot #19637Screenshot #19640Screenshot #74972

  Huiyi de Yousidiya

Screenshot #87729Screenshot #87730